Air Filtration Solutions

01

1. What is it?

An extraction arm is a capture or receiving device designed to capture aerosols at the emission point before the contaminants have a chance to reach the workers' breathing space. Typically, it is the first and most crucial part of an LEV or Local Exhaust and Ventilation system. NB: Local exhaust ventilation can also be referred to as process ventilation or Industrial Ventilation, or Local Control ventilation.

Available in several different designs:

Internally Supported
Externally Supported
Telescopic
Mild or Stainless Steel Construction
Lengths: Up to 45'
2.5" to 8" Ø Available

Typically the Extraction Arms are connected to a fixed extraction fan, Filter system or dust collector via direct mounting or a "Header Type" duct system.

For more info, relate to the links below:
Welding Productivity
Solidswiki

2. Suitable Applications

3. Will it Make my Workplace Safer?

Yes, but only when systems are designed, installed, and used precisely. Unlike dilution ventilation, Extraction Arms can return significant energy savings and improvements in health and safety. However, the precision at which they must be designed, installed, and used can be complex. Lev-Co uses three procedures to determine the design and installation of our extraction arms. These three procedures are OSHA HOC (hierarchy of controls), MOC (management of change), and PSR (pre-start safety review) Lev-Co recommends that these three procedures, when appropriate, should be used when selecting extraction arms as a capture method.

Here are links to examples of these three procedures:
OSHA Hierarchy of Controls
MOC Management of Change Sample Document
PSR Pre-start Health and Safety Review

4. Suitable Industries and Environments

Extraction Arms are essential for maintaining a safe and healthy workplace. In many benchtop applications, such as welding and soldering, where a closed-off isolation chamber is not possible, a point source capture system is needed to keep the constant stream of smoke under control.

Depending on the rate and intensity of production in your facility, the rate of fumes and smoke may rapidly increase workers' risk as a result of the volume of smoke, heat, and consistency of fumes. While some processes require minimal extraction rates, others will need high-intensity extraction capabilities. We ensure that our wide range of configurations will accommodate your specific application.

Below is a full list of processes associated with extraction arms:

Welding, Welding Fumes, and Soldering
Laboratories and Laboratory Fumes
Metalworking Fumes
Grinding
Cutting
Oil Mist
Painting
Polishing
Packaging
Light Dust

For more insight on configurations for welding and metal-shop, read the article below:

Welding Productivity

You can also refer to our Industry Solution Page for a list of processes.

5. Available Models and Variants

You can find a full selection by viewing our catalog.

6. What Criteria to Consider

The configuration of an extraction system depends on many variables. The intensity of your productions process determines the rate of the accumulation of fumes, which determines the rate of airflow needed to effectively capture, which then determines the required air : cloth ratio of your filter.

How do you determine a suitable configuration?

What contaminant are you extracting?
What is the rate of containment accumulation per second?
What are the physical limitations/protocols of your facility?
How often will it be used?

Things to consider:

Capacity: How much flow will the extraction arm handle?
Capture Velocity: Can the extraction accommodate the required capture velocity to capture the aerosol?
Easy to Use: How many articulations/joints does the extraction arm have?
Stay in Place: Does the extraction stay in place, how often do the joints need to be tightened?
Extension Hoods: Do you need a large diameter extension hood?
- e.g. 36"Ø? (Optional)
How large is your facility? How much reach do you need?
How many workers are working with contaminants at any given time?
Where are fumes being extracted? Pre-defined locations, or movable workstations?
Can the extraction arm withstand the pressure/abrasion/corrosion/etc.?

For more questions about configurations and criteria, contact us, or click the link below to get a better understanding of the importance of accurate configurations.

Welding Productivity

7. Pros and Cons Versus other Engineering Control Methods

Pro's:

Remove airborne toxins at source before they enter any worker's breathing zone
Low energy costs (heat loss, electrical energy)
Allow the use of smaller filtration equipment
Well suited for "on-demand" controls allowing for greater flow at the source, yet lower overall flow
Some extraction arms allow the supporting of items like wire feeders, Compressed air cord reels, and electrical cord reels for increased productivity
Better visibility through the addition of hood-mounted lighting solutions
Optimized hoods, large-diameter receiving hoods, and hose extensions are effective solutions where capture or hood placement is difficult
Hood can be rotated 90° (perpendicular to the floor), eliminating shadowing
When used correctly, the operator can visually see the contaminant being safely drawn away from the process
Options of 115 volt means the portable filter units are effortless to install anywhere in a facility

Con's:

Operator needs to be comfortable with the use of the arm to ensure adequate capture
Arms not always available in larger diameters for required capture velocity
Production time lost to place the extraction arm in place
Cannot always reach the point of emission
Worker buy-in is not always achieved due to a lack of fume capture
Fugitive emission released into the workspace
Some extractors are not built to withstand the working environment
Poor design can lead to excess capture velocity resulting in extra capture velocity (shielding gases loss) and air noise

8. Preventing the Spread of Airborne Fumes and Chemicals

Industrial workers are exposed to a variety of health hazards every day. As a result, these workers risk the possibility of becoming sick, ill, and in some cases, permanently disabled. According to a WHO estimate (WHO, 2000), unintentional poisonings led to 300,000 deaths in the year 2000.

It's our mission to diminish that figure, but it only works if the correct equipment is used, and configured correctly. Our team works to make the logistics of those questions as straightforward and coherent as possible, and as such, will work with you to provide you with the best extraction system that fits your worker's needs. This includes everything from accessibility and usability to longevity and reliability.

You can read more about the risks and preventions of fume extraction below:
OSHA
WHO

9. Effectiveness Versus Dilution Ventilation

The integral flaw with dilution ventilation is the contaminants picked up by the system are not ultimately removed from the air. As a result, dilution ventilation is ineffective against most contaminants produced in industrial processes, such as metal fumes, abrasive dust, vapors, gases, and toxic chemicals. Local exhaust ventilation eliminates these issues through the capture of contaminants near or at the source of the contaminant, not allowing the contaminant to enter the breathing space, or the workplace atmosphere.

To read up more about the benefits of local exhaust ventilation versus dilution ventilation, refer to these links:
CCOHS
Use of Local Exhaust and Dilution Ventilation

10. Maintenance Costs

The maintenance costs associated with our extraction arms are considerably low. Unlike some companies that construct extraction arms out of plastic and diecast white metal, all structural components of our products are made using mild/stainless steel, or aluminum.

Provided the system is adjusted correctly prior to use, and the hose is configured for your contaminant and application, these extraction arms will provide years of service with minimal maintenance.

Energy Saving:
With the use of a local exhaust ventilation system and capture at source functionality, the maintenance costs for your system will ultimately go down as a result of associated efficiency. With capture at source functionality, the area at which extraction is occurring is far smaller than the area a large duct vent would be pulling from, and as a result, far less energy is needed to complete the extraction, which runs components at lower stress levels, and boosts longevity, and reduces energy bills.

11. Do's and Don'ts

Do's:

Use the extraction system for it's applicable contaminant
Always refer to the manual before using the system for different contaminant

Don'ts:

Don't use the extraction arm for incorrect applications.
- For example, if your extraction arm is configured for non-flammable contaminants, don't use it for contaminants such as VOCs

12. Installation Tips and Tricks

Our extraction arms come in a large range of configurations, including wall mounts, ceiling mounts, bench, and tabletop mounts. With a wide range of accessories, extraction arms can also be mounted to adjustable mounting configurations for wide span and reach.

You can find a list of Extraction Arm accessories here. For more questions about installation options, call our sales office.

View Products and Prices

02

Products & Prices

1. What is it?

Much like an extraction arm, which allows for capture-at-source fume extraction, and easy maneuverability, the Portable Filter Unit is one step up. Point source capture can be achieved anywhere you can roll the filter unit, rather than being confined to the reach of a fixed system. Quite often, “Clean Air” solutions are required throughout a workplace. These units can be easily moved from location to location with ease while capturing dust and fumes where needed.

Various Options in Filtering Systems Available:

Washable Filters
Cleanable Filters
Self-Cleaning Systems
Throw Away Filters

2. Suitable Applications

Portable filter units are perfect for situations where an integrated HVAC system is not an option, such as cell-based manufacturing, where workstations are being set up and torn down daily. Here is a full list:

3. Will it Make my Workplace Safer?

Yes, but only when systems are configured, installed, and maintained for the correct use application. The filter selection is paramount to ensuring the reliability, effectiveness, and safety of the unit you use.

Unlike dilution ventilation, Portable Air Filer Units can return significant energy savings and improvements in health and safety. However, the precision at which they must be designed, installed, and used can be complex. Lev-co uses three procedures to determine the design and installation of our products. These three procedures are OSHA HOC (hierarchy of controls), MOC (management of change), and PSR (pre-start safety review). Lev-Co recommends that these three procedures, when appropriate, should be used when selecting Portable Air Filter Units as a capture method.

Here are links to examples of these three procedures:
OSHA Hierarchy of controls
MOC Management of change sample document
PSR Pre-start Health and Safety review

4. What Industries and Environments are Portable Filter Units used in?

Portable air filter units are very broad in applications. Some applications include metal shops, industrial manufacturing facilities, auto shops, paint booths, and electrical repair facilities. For a full list of applicable industries, refer to our Industry Solution Page

5. What are the Different Types of Portable Filter Units Available?

You can find a full selection by viewing our catalog below. All units come equipped with fan/motor assemblies to ensure adequate extraction at all times.

6. What Criteria to Consider

Some important points to consider when purchasing:

Capacity: How much flow will the extraction arm handle?
Capture Velocity: Can the extraction accommodate the required capture velocity to capture the aerosol?
Easy to Use: How many articulations/joints does the extraction arm have?
Stay in Place: Does the extraction stay in place, how often do the joints need to be tightened?
Extension Hoods: Do you need a large diameter extension hood?
- e.g. 36"Ø? (Optional)
Can the extraction arm withstand the pressure/abrasion/corrosion/etc.?
Can the filter withstand the pressure/abrasion/corrosion/etc.?

7. Pros and Cons Versus Other Engineering Control Methods

Pro's:

Remove airborne toxins at source before they enter any worker's breathing zone
Some extraction arms allow the supporting of items like wire feeders, compressed air cord reels, and electrical cord reels for increased productivity
Better visibility through the addition of hood-mounted lighting solutions
Optimized hoods, large-diameter receiving hoods, and hose extensions are effective solutions where capture or hood placement is difficult
Hood can be rotated 90° (perpendicular to the floor), eliminating shadowing
When used correctly, the operator can visually see the contaminant being safely drawn away from the process
With the use of castors, the arm can reach far for precise fume extraction

Con's:

Operator needs to be comfortable with the use of the arm to ensure adequate capture
Arms not always available in larger diameters for required capture velocity
System not effective unless configured correctly

8. Preventing the Spread of Airborne Fumes and Chemicals

Industrial workers are exposed to many health hazards daily. As a result, these workers risk the possibility becoming sick, ill, and in some cases, permanently disabled. According to a WHO estimate (WHO, 2000), unintentional poisonings led to 300,000 deaths in the year 2000.

We aim to diminish that figure, but this is only possible if the correct equipment is used, and configured correctly. Our team at Lev-Co works to make the logistics of those questions as straightforward as possible, and as such, will work to provide you with the best extraction system that fits your worker's needs. This includes everything from accessibility and usability to longevity and reliability.

You can read more about the risks and preventions of fume extraction below:
OSHA
WHO

9. Effectiveness Versus Dilution Ventilation

The integral flaw with dilution ventilation is the contaminants picked up by the system are not ultimately removed from the air. As a result, dilution ventilation is ineffective against most contaminants produced in industrial processes, such as metal fumes, abrasive dust, vapors, gases, and toxic chemicals. Local exhaust ventilation eliminates these issues through the capture of contaminants near or at the source of the contaminant, not allowing the contaminant to enter the atmosphere.

To read up more about the benefits of local exhaust ventilation versus dilution ventilation, refer to these links:
CCOHS
Use of Local Exhaust and Dilution Ventilation

10. Maintenance Costs

Filtration:
Filter maintenance is paramount to the healthy operation of both your workers and the fume extraction system. We offer a wide range of filter options for multiple applications. Some of these filters are washable, and as a result, reduce maintenance costs to close to zero. However, depending on shop service hours and specific contaminants, filter replacement may be required.

Electric Motor:
With the use of direct-drive motors, there are no wear items such as pulleys or belts. As a result, the risk of failure is highly unlikely, regardless of maintenance intervals.

Construction: All of our portable filter units are built with steel and are welded together for the best consistent performance, and the least leakage. As such, there is virtually nothing about the construction and function of the system that needs maintaining. The use of heavy duty ball-bearing castors ensures years of reliability on the shop floor.

11. Do's & Don'ts

Do's:

Periodic maintenance checks

Don'ts:

Don't obstruct the airflow
Don't run the unit while not in use

12. Installation Tips & Tricks

All of our portable filter units come with built in castors for easy maneuverability and portability. There are multiple configurations of extraction arms and filters available for contaminant-specific applications.

View Products and Prices

03

Products & Prices

1. What is it?

Our Single or Dual Work-Stations Filter Units are standalone or suspended systems with integrated blower and filtration. These units are designed for air recirculation as opposed to standard fume extraction, allowing for a more efficient air purification solution.

Available in several different designs:

Ceiling mounted
Wall mounted
Standalone
Portable/maneuverable

2. Suitable Applications?

Single or Dual Work-Station Filter Units such as these are ideal for 'cell based' manufacturing and work stations. Most of these solutions are based upon self-cleaning filter cleaning systems to reduce filter costs. Water-based systems are also available for certain explosive and flammable applications.

Here is a list of applicable processes:

3. Will it Make my Workspace Safer?

Yes, but only when systems are configured, installed, and maintained for the correct use application. The filter selection is paramount to ensuring the reliability, effectiveness, and safety of the unit you use. Lev-Co uses three procedures to determine the design and installation of our filter units. These three procedures are OSHA HOC (hierarchy of controls), MOC (management of change), and PSR (pre-start safety review). Lev-Co recommends that these three procedures, when appropriate, should be used when selecting filter units.

Here are links to examples of these three procedures:
OSHA Hierarchy of controls
MOC Management of change sample document
PSR Pre-start Health and Safety review

4. Suitable Industries and Environments?

Work-station filter units serve a wide range of industrial applications. Some applications include metal shops, auto shops, manufacturing facilities, and electrical repair facilities.

Refer to our Industries Page for a full list.

5. Available Models and Variants?

For a full selection, check out our catalog below

6. What Criteria to Consider

Some important points to consider when purchasing:

Capacity: How much flow will the filter unit handle?
Capture Velocity: Can the filters accommodate the required capture velocity to capture the aerosol?
Extraction Arm: Do you require point source filtration? (Optional)
Filter Cleaning: Does the filter cleaning system really work in your application?
Can the filters withstand the pressure/abrasion/corrosion/etc.?
What is the Total Flow Rate? How many CFM's are needed to capture the contaminants?
What is the exact resistance? Filter and capture device losses required for the fan to overcome?
Do I have enough filter media in the collector? What is the air to cloth ratio?
Will it stand up to your environment?
- e.g. is it made from plastic or steel?
What will be my filter, maintenance and energy costs per year?
Are there any tertiary risks such as fire, explosion, etc., that I need to consider?

7. Pros and Cons Versus Other Engineering Control Methods?

Pro's:

Ideal for cell-based manufacturing.
Easy to relocate work stations and associated filtration equipment
Energy savings associated with on-demand process-only filtration
Available self-cleaning, or cleanable filters
Available with extraction arms for point source filtration
Straight forward installation and deployment
Long-term cost-saving
Not reliant on pre-existing ductwork

Con's:

Multiple systems to maintain
Expensive in short term
Fixed system, cannot be moved while in use
Limited airflow depending on filter selection

8. Preventing the Spread of Airborne Fumes and Chemicals

Industrial workers are exposed to a variety of health hazards every day. As a result, these workers risk the possibility of becoming sick, ill, and in some cases, permanently disabled. According to a WHO estimate (WHO, 2000), unintentional poisonings led to 300,000 deaths in the year 2000.

It's our mission to diminish that figure, but it only works if the correct equipment is used, and configured correctly. Our team works to make the logistics of those questions as straightforward and coherent as possible, and as such, will work with you to provide you with the best extraction system that fits your worker's needs. This includes everything from accessibility and usability to longevity and reliability.

You can read more about the risks and preventions of fume extraction below:
OSHA
WHO

9. Effectiveness Versus Dilution Ventilation

The integral flaw with dilution ventilation is the contaminants picked up by the system are not ultimately removed from the air. As a result, dilution ventilation is ineffective against most contaminants produced in industrial processes, such as metal fumes, abrasive dust, vapors, gases, and toxic chemicals. Local exhaust ventilation eliminates these issues through the capture of contaminants near or at the source of the contaminant, not allowing the contaminant to enter the atmosphere.

To read up more about the benefits of local exhaust ventilation versus dilution ventilation, refer to these links:
CCOHS
Use of Local Exhaust and Dilution Ventilation

10. Maintenance Costs

Filtration:
Filter maintenance is paramount to the healthy operation of both your workers and the fume extraction system. We offer a wide range of filter options for multiple applications. Some of these filters are washable, and as a result, reduce maintenance costs to close to zero. However, depending on shop service hours and specific contaminants, filter replacement may be required.

Construction:
All our filter units are built with steel and are welded together for the best consistent performance, and the least leakage. As such, there is virtually nothing about the construction and function of the system that needs maintaining.

11. Do's and Don'ts

Do's:

Maintenance checks periodically

Don'ts:

Don't leave the unit running while not in use
Don't obstruct the airflow
Don't change contaminant extraction without referring to either the owners manual, or a Lev-Co representative

12. Installation Tips and Tricks

For fixed units, options of either wall or floor mounted configurations are available. Units can also be retrofitted to pre-existing industrial equipment.
Portable plug and play units are also available for versatile extraction.

View Products and Prices

04

Products & Prices

1. What is it?

Centrally Ducted Dust Collectors such as these are ideal for large shops and centrally ducted applications. Most of these solutions are based upon self-cleaning filter cleaning systems to help reduce filter costs. In addition, Water-based filtration systems are available for certain explosive and flammable applications.

2. Suitable Applications

You can find a full list of suitable applications below:

3. Will it Make my Workplace Safer?

Yes, we have a large variety of configurations available to suit every application. But the local exhaust ventilation systems we supply only work when they are configured and maintained as they are designed. The correct filter selection is paramount to smoothly capturing the contaminant properly and maintaining a safe work environment.

4. Suitable Industries and Environments

You can find a list of suitable industries below:

5. Available Models and Variants

You can view our products in our catalog below.

6. What Criteria to Consider

Some important points to consider when purchasing:

Velocity: What velocity is needed to pick up the contaminant?
Filter Media: What is the air : cloth ratio required for consistent filtration for your application?
Maintenance Costs: How often will the filter need to be washed/replaced?
Are there any tertiary risks such as fire, explosion, etc., that I need to consider?

7. Preventing the Spread of Airborne Fumes and Chemicals

Industrial workers are exposed to a variety of health hazards every day. As a result, these workers risk the possibility of becoming sick, ill, and in some cases, permanently disabled. According to a WHO estimate (WHO, 2000), unintentional poisonings led to 300,000 deaths in the year 2000.

It's our mission to diminish that figure, but it only works if the correct equipment is used, and configured correctly. Our team works to make the logistics of those questions as straightforward and coherent as possible, and as such, will work with you to provide you with the best extraction system that fits your worker's needs. This includes everything from accessibility and usability to longevity and reliability.

You can read more about the risks and preventions of fume extraction below:
OSHA
WHO

8. Pros and Cons Versus other Engineering Control Methods

Pros:

High volume for larger application
Industrial design
Modular
Single units serve multiple workstations
Self-contained
Covers large range of contaminants

Cons:

Fixed position
Installation

9. Effectiveness Versus Dilution Ventilation

The integral flaw with dilution ventilation is that the contaminant picked up by the process ultimately stays airborne. Dilution ventilation picks up the contaminant and dilutes it with clean air, but doesn't remove the contaminant from the air until it has spread through the building to the exhaust system. As a result of this, dilution ventilation is not suitable for industrial processes. The contaminants produced in industrial process include toxic fumes, metal dust, oil mist, vapors, and gases.

Local exhaust ventilation is a much more effective extraction process that utilizes methods that capture the contaminant near or at the source of process. This eliminates the possibility of airborne contaminants entering the breathing zone. Rather than invest money into the buildings ventilation system to cope with the contaminant, simply invest in what will remove the risk all together.

To read up more about the benefits of local exhaust ventilation versus dilution ventilation, refer to these links:
CCOHS
Use of Local Exhaust and Dilution Ventilation

10. Maintenance Costs

Construction:
Our units are built using only raw materials like steel and aluminum. This ensures a long lasting product that won't fail from fatigue of plastic or die-cast elements. We also finish our products in a durable polyurethane finish which designed to cope with harsh environments, reducing the risk of corrosion.

Filters:
Our filter units incorporate a "Vibra-Pulse" filter cleaning system that reduces maintenance costs dramatically when compared to conventional filtration designs. We also offer a HEPA high efficiency after-filter to deliver 99.97% filter efficiency.

Electric Motor:
All of our units incorporate an electric direct-drive motor. Without the use of pulleys or belts, the maintenance associated with the motor is all but non-existent.

View Products and Prices

05

Products & Prices

1. What is it?

Sometimes the best solution for extracting welding fumes is right on the table. This is generally referred to as a Down Draft Table. The Downdraft Table serves as both a workbench and an air cleaner. A rigid grill supports the product, while an air cleaner below draws smoke and fumes down and away from the worker's breathing zone. A worker can weld, grind, and cut on the surface of the table while dust and fumes get sucked away from breathing air space.

2. Suitable Applications

By combining the extraction system with a workbench, downdraft tables are very effective for safe work environments, and space-saving solutions. Soldering, spray-painting, and other benchwork applications are exactly what our downdraft tables are for.

3. Will it Make my Workplace Safer?

Yes, but only when systems are configured, installed, and maintained for the correct use application. The filter selection is paramount to ensuring the reliability, effectiveness, and safety of the unit you use.

4. Suitable Industries and Environments

Downdraft tables are mainly designed with the idea of a workstation being integrated into the unit, so any application that requires fume extraction from a bench is ideal for a downdraft table. This includes soldering, grinding, spray painting, and welding. For a full list of industries, refer to our Industry Solution Page

5. Available Models and Variants

To see a full list of products, check out our catalog below.

6. What Criteria to Consider

Some important points to consider when purchasing:

Air Velocity: What is the velocity or the air required to pull the fumes and dust down into the table? (Add up the CFM for all of the inlets that will run at once)
Face Velocity: What is the velocity at the Table surface required to achieve the appropriate capture velocity?
Noise: Does your facility require a low operation noise level?
Portability: Do you need the ability to reposition or maneuver the table?
Orientation: Do you work standing up, or sitting down?
Filter Cleaning: Does the filter cleaning system really work in your application?
Surface Area: How much space to you need for your application?
Capture Velocity: Can the filters accommodate the required capture velocity to capture the aerosol?
Can the filters withstand the Pressure/abrasion/corrosion/etc.?
Do I have enough filter media (air to cloth ratio) in the collector?
Will it stand up to the working environment?
- e.g. is it made from plastic or steel?
What will be my filter, maintenance, and energy costs per year?
Are there any tertiary risks such as fire, explosion, etc., that I need to consider?

7. Pros and Cons Versus Other Engineering Capture Methods

Pro's:

Portable options available
Commercial options available
Multi-purpose - doubles as a standard work-bench
All steel construction
Easy filter access - reduces maintenance time
Multiple filter options

Con's

Extraction is restricted to the bench surface
Portability of the unit determines the range of extraction

8. Preventing the Spread of Airborne Fumes and Chemicals

Industrial workers are exposed to a variety of health hazards every day. As a result, these workers risk the possibility of becoming sick, ill, and in some cases, permanently disabled. According to a WHO estimate (WHO, 2000), unintentional poisonings led to 300,000 deaths in the year 2000.

It's our mission to diminish that figure, but it only works if the correct equipment is used, and configured correctly. Our team works to make the logistics of those questions as straightforward and coherent as possible, and as such, will work with you to provide you with the best extraction system that fits your worker's needs. This includes everything from accessibility and usability to longevity and reliability.

You can read more about the risks and preventions of fume extraction below:
OSHA
WHO

9. Effectiveness Versus Dilution Ventilation

Dilution ventilation is designed with more of a commercial aspect in mind. As oppose to local exhaust ventilation, how dilution ventilation extracts contaminants is by diluting them with fresh air, which requires the contaminants to be airborne before being removed from the building. This means that all airborne contaminants ultimately spread throughout the building until being pushed through the ventilation exhaust system.

On the other hand, local exhaust ventilation captures contaminants at or near the source of the process. This eliminates the possibility of the contaminant becoming airborne in the first place. Eliminating the risk of airborne contaminant means that a buildings HVAC system does not have to filter industrial contaminants, which dilution ventilation is not designed to do. Some industrial contaminants are highly abrasive and corrosive. Rather than investing in the maintenance costs of the building multiple times, invest in the engineering control solution designed to deal with it.

To read up more about the benefits of local exhaust ventilation versus dilution ventilation, refer to these links:
CCOHS
Use of Local Exhaust and Dilution Ventilation

10. Maintenance Costs

Our downdraft tables are all built using only mild and stainless steel, and finished in a very durable polyurethane powder coating, powered by a direct drive electric motor. We follow these requirements to ensure long life and minimal maintenance costs.

Filters:
We offer a selection of several filters, each designed for different workloads. Depending on contaminant, hours of use, and hazards associated with any given contaminant, we have a filter that will work for your needs. This way you don't need to worry about filters clogging prematurely, which avoids premature failure.

Motors: We use a direct drive motor on all of our extraction systems. Without the use of belts or pulleys in the driveline of the motor, associated maintenance costs are substantially lower, and allow you to get the most use out of your system without service intervals.

View Products and Prices

06

Products & Prices

1. What is it?

Back and Side Draft Tables are similar to Down-Draft Tables. “Back Draft” and “Cross Draft” are ideal solutions when extraction methods such as self-supporting extraction arms and other such systems prove to be inappropriate for the application. The contaminated air is drawn in from the back or side panels of the work area. These units come with or without filtration systems and can also be combined to create complete enclosures for whatever the application might be.

2. Suitable Applications

3. Will it Make my Workplace Safer?

yes, our collection systems are very effective. However, correct configuration is paramount in guaranteeing the unit performs as it should. Our goal is to make it as easy as can be to configure your system to your specific needs, and our sales representatives are happy to help you along the way to buying the right product.

4. Suitable Industries and Environments

For a full list of industries, refer to our Industry Solution Page

5. Available Models and Variants

For a list of available models, check out our catalog below.

6. What Criteria to Consider

Some important points to consider when purchasing:

Air Velocity: What is the velocity or the air required to pull the fumes and dust horizontally into the table?
- Capture Velocity: Add up the CFM for all of the inlets that will run at once
Face Velocity: What velocity at the table surface is required to achieve the appropriate capture velocity?
Filter Cleaning: Does the filter cleaning system really work in your application?
Do I have enough filter media in the collector? (air to cloth ratio)
Will it stand up to the working environment?
- e.g. is it made from plastic or steel?
What will be my filter maintenance and energy costs per year?
Are there any tertiary risks such as fire, explosion, etc., that I need to consider?

7. Preventing the Spread of Airborne Fumes and Chemicals

Industrial workers are exposed to a variety of health hazards every day. As a result, these workers risk the possibility of becoming sick, ill, and in some cases, permanently disabled. According to a WHO estimate (WHO, 2000), unintentional poisonings led to 300,000 deaths in the year 2000.

We are dedicated to diminishing that figure, but it only works if the correct equipment is used, and configured correctly. Our team works to make the logistics of these questions as straightforward and coherent as possible. We will work with you to provide you with the best extraction system that fits your worker's needs. This includes everything from accessibility and usability to longevity and reliability.

You can read more about the risks and preventions of fume extraction below:
OSHA
WHO

View Products and Prices

07

Products & Prices

1. What is it?

These units are designed to capture airborne contaminants such as oil mist and chemicals, while simultaneously extracting and containing dust and moisture created by the machining process. Our units use filters that are "SELF-DRAINING", which captures moisture, and dust at the same time, and as such, it is very important that the amount of dust being captured by these systems does not exceed more than 5% of the total extracted pollutant. If the dust quantity is kept to a minimum, filter life can be expected between 1 to 5 years depending on the application and runtime.

2. Suitable Applications

Mist Collectors are for a variety of mist-producing applications such as CNC machining and cold-heading applications. A full list of applications can be found below:

3. Will it Make my Workplace Safer?

Yes, these units can make the workplace safer by capturing harmful oil mists that otherwise mix with the air in industrial facilities. However, the effectiveness of our units relies on proper configuration, installation, and maintenance for the specific application. We offer a range of configurations that vary from standalone extraction systems with point source extraction, to integrated systems that extract directly from the machining process.

4. Suitable Industries and Environments

Our mist collectors are designed for precision metalwork applications, such as CNC machining, cold-heading, and lathing applications.

5. Available Models and Variants

To see our selection of products, check out our catalog below

6. What Criteria to Consider

Some important points to consider when purchasing:

Velocity: How much airflow is needed to pick up the contaminant?
Point-Source or Integrated System: Do you need to extract from a workstation, or from a machining process?
Portability: Do you need mist collection from multiple workstations, or integrated installation?
Filter Selection: What filter do you need for your contaminant?
Positioning: Do you need an extraction arm to capture your source more effectively?

7. Preventing the Spread of Airborne Fumes and Chemicals

Industrial workers are exposed to a variety of health hazards every day. As a result, these workers risk the possibility of becoming sick, ill, and in some cases, permanently disabled. According to a WHO estimate (WHO, 2000), unintentional poisonings led to 300,000 deaths in the year 2000.

It is our goal to diminish that figure, but it only works if the correct equipment is used, and configured correctly. Our team works to make the process of answering your questions as straightforward and coherent as possible, and as such, will work with you to provide you with the system that best fits your needs. This includes everything from accessibility and usability to longevity and reliability.

You can read more about the risks and preventions of fume extraction below:
OSHA
WHO

8. Here are Some General Design Velocities when using "CAPTURE" Hoods:

Mist:

Capture Velocity 100 FPM
Transport Velocity 2250 FPM
Minimum Face Velocity 1766 FPM

Here are some general design velocities when using "ENCLOSING" Hoods:
Mist CNC:

Minimum Face Velocity 75 FPM
Transport Velocity 2250 FPM

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08

Products & Prices

1. What is it?

Environmental Control Booths allow operators to work on a variety of components while assuring worker comfort and visibility within the critical area. These solutions also ensure that the "dust produced within the booth... stays in the booth..."

2. Suitable Applications

3. Will it Make my Workplace Safer?

Yes, but only when the system is configured, installed, and maintained for the correct application. The filter selection is the most important decision for ensuring the reliability, effectiveness, and safety of the unit you select.

4. Suitable Industries and Environments

For a full list of industries, refer to our Industry Solution Page.

5. Available Models and Variants

For a list of available models, check out our catalog below.

6. What Criteria to Consider

Some important points to consider when purchasing:

Filter Cleaning: Is it easy to clean? Does the filter cleaning system really work?
How large does the booth have to be?
Is the air speed through the work zone high enough to protect the worker?
What is the noise level? Inside and outside the booth?
Will it stand up to your environment?
- e.g. is it made from plastic or steel?
What will be my filter costs per year? - In welding you can use lbs. of welding wire…
What is the filtration efficiency?
Are there any tertiary risks such as fire, explosion, etc.?

7. Preventing the Spread of Airborne Fumes and Chemicals

Industrial workers are exposed to a variety of health hazards every day. As a result, these workers risk the possibility of becoming sick, ill, and in some cases, permanently disabled. According to a WHO estimate (WHO, 2000), unintentional poisonings led to 300,000 deaths in the year 2000.

It's our mission to diminish that figure, but it only works if the correct equipment is used, and configured accordingly. Our team works to make the process of answering those questions as straightforward and coherent as possible, and will work to provide you with the best extraction system that fits your worker's needs. This includes everything from accessibility and usability to longevity and reliability.

You can read more about the risks and preventions of fume extraction below:
OSHA
WHO

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09

Products & Prices

1. What is it?

Ambient Air Cleaners involve the use of large “Washable, Cleanable or Replaceable Media” filters. These units both filter and re-circulate the air back into the work place.

Installation Configurations:

Free Hanging “Negative Pressure”
“Race Track”
"Cross Dilution"

Depending upon the designed air pattern, these systems "scrub" the ambient air of contaminants, and the result is a dramatic reduction of airborne pollution. These systems are best used in combination with source-collection equipment.

2. Suitable Applications

3. Will it Make my Workplace Safer?

Yes, but only when systems are configured, installed, and maintained for the correct use application. The filter selection is paramount to ensuring the reliability, effectiveness, and safety of the unit you use.

4. Suitable Industries and Engineers

For a full list of industries, refer to our Industry Solution Page

5. Available Models and Variants

For a list of available models, check out our catalog below.

6. What Criteria to Consider

Some important points to consider when purchasing:

What is the volume of the room you want to clean?
- e.g. cubic dimension: L'xW'xH'
How many times would you like to change the air in your room?
- e.g. Welding=8 AC/H
How much contaminant do I generate?
- e.g. dust, smoke, fume
Where am I going to mount these units?
Can I use these units to create a negative pressure in my work area?
Do I want "throw away", "washable", "cleanable" or "self cleaning" filters?

7. Preventing the Spread of Airborne Fumes and Chemicals

Industrial workers are exposed to a variety of health hazards every day. As a result, these workers risk the possibility of becoming sick, ill, and in some cases, permanently disabled. According to a WHO estimate (WHO, 2000), unintentional poisonings led to 300,000 deaths in the year 2000.

It's our mission to diminish that figure, but it only works if the correct equipment is used, and configured correctly. Our team works to make the logistics of those questions as straightforward and coherent as possible, and as such, will work with you to provide you with the best extraction system that fits your worker's needs. This includes everything from accessibility and usability to longevity and reliability.

You can read more about the risks and preventions of fume extraction below:
OSHA
WHO

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10

Products & Prices

1. What is it?

Ducted Air Cleaners are used in a variety of applications where the filter selection often requires a specific configuration. With these collectors, you can select a variety of particulate, liquid or gas phase filters such as “HEPA” filters, “Mist Agglomerators”, and “Gas Absorbers” respectively. These systems are available with or without pre-engineered and installed fan packages.

Here are some general design velocities when using "CAPTURE" Hoods:

Smoke (e.g. Welding):

Capture Velocity 100 FPM
Transport Velocity 3000 FPM
Minimum Face Velocity 2355 FPM

Dust (e.g. Grinding):

Capture Velocity 500 FPM
Transport Velocity 4000 FPM
Minimum Face Velocity 4000 FPM

Gas (e.g. V.O.C.'s):

Capture Velocity 50 FPM
Transport Velocity 2000 FPM
Minimum Face Velocity 785 FPM

Mist:

Capture Velocity 100 FPM
Transport Velocity 2250 FPM
Minimum Face Velocity 1766 FPM

2. Suitable Applications

3. Will it Make my Workplace Safer?

Yes, but only when systems are configured, installed, and maintained for the correct use application. Choosing the right filter is essential for ensuring the reliability, effectiveness, and safety of your unit.

4. Suitable Industries and Environments

For a full list of industries, refer to our Industry Solution Page

5. Available Models and Variants

For a list of available models, check out our catalog below.

6. Preventing the Spread of Airborne Fumes and Chemicals

Industrial workers are exposed to a variety of health hazards every day. As a result, these workers risk the possibility of becoming sick, ill, and in some cases, permanently disabled. According to a WHO estimate (WHO, 2000), unintentional poisonings led to 300,000 deaths in the year 2000.

This is our mission, but it will only succeed if we use and configure the right equipment. Our team works to make the logistics of those questions as straightforward and coherent as possible, and as such, will work with you to provide you with the best extraction system that fits your worker's needs. This includes everything from accessibility and usability to longevity and reliability.

You can read more about the risks and preventions of fume extraction below:
OSHA
WHO

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11

Products & Prices

1. What is it?

Updraft and Overhead hoods, completely or partially enclose the process or contaminant generation point.

For example:

A Complete Enclosure would be a sealed “box” or similar type of configuration where only minimal openings exist and the contaminated air is sucked up and away. The enclosing hood is preferred wherever the process configuration and operation will permit.

A Partial Enclosure would be an “open box” (i.e.: with the lid cut off). An inward flow of air through the enclosure opening will contain the contaminant within the enclosure and prevent its escape into the outside work environment.

If a complete enclosure is not feasible, the partial enclosure should be used to the maximum extent possible.

2. Suitable Applications

3. Will it Make my Workplace Safer?

Yes it will, but only when systems are set up and maintained for the correct application. Filter selection is the most important variable to ensuring the reliability, effectiveness, and safety of the unit you use.

4. Suitable Industries and Environments

For a full list of industries, refer to our Industry Solution Page

5. Available Models and Variants

For a list of available models, check out our catalog below.

6. Preventing the Spread of Airborne Fumes and Chemicals

Industrial workers are exposed to a variety of health hazards every day. As a result, these workers risk the possibility of becoming sick, ill, and in some cases, permanently disabled. According to a WHO estimate (WHO, 2000), unintentional poisonings led to 300,000 deaths in the year 2000.

It's our mission to diminish that figure, but it only works if the correct equipment is used, and configured for the right contaminant. Our team works to make the logistics of those questions as straightforward and coherent as possible, and as such, will work with you to provide you with the best extraction system that fits your worker's needs. This includes everything from accessibility and usability to longevity and reliability.

You can read more about the risks and preventions of fume extraction below:
OSHA
WHO

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12

Products & Prices

1. What is it?

Mobile HEPA vacuums and hi-vacuum/pressure dust collectors, designed for tough industrial applications. We use a variety of filtration stages.

Example: Pre-separators, pre-filters, spark traps, cleanable or self-cleaning main filter, HEPA filters, and VOC/ODOUR control final filters. Certified Leak tested HEPA filters are tested for effectiveness and safety of the personnel using the equipment.

2. Suitable Applications

3. Will it Make my Workplace Safer?

Yes, but only if the system is configured, installed, and maintained for the correct use. Proper filter selection is paramount to ensuring the reliability, effectiveness, and safety of the unit you use.

4. Suitable Industries and Environments

For a full list of industries, refer to our Industry Solution Page

5. Available Models and Variants

For a list of available models, check out our catalog below.

6. Preventing the Spread of Airborne Fumes and Chemicals

Industrial workers are exposed to a variety of health hazards every day. As a result, these workers risk the possibility of becoming sick, ill, and in some cases, permanently disabled. According to a WHO estimate (WHO, 2000), unintentional poisonings led to 300,000 deaths in the year 2000.

It's our mission to consistently reduce that figure, but it only works if the correct equipment is used. Our team works to make choosing the right product as straightforward and coherent as possible, and as such, will work with you to deliver the best extraction system that fits your worker's needs. This includes everything from accessibility and usability to longevity and reliability.

You can read more about the risks and preventions of fume extraction below:
OSHA
WHO

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13

Products & Prices

1. What is it?

Fans for air make up and exhaust are quite often a difficult product to find when designing a simple ducted local exhaust system.

Here we offer a variety of "LEV" (Local Exhaust and Ventilation) fans specifically designed to meet the demands of such systems.

These Fans are able to handle specific applications such as:

Corrosive Fumes
Abrasive Dusts
Proper Flow and Static Pressure for a particular application.

Please feel free to contact one of our System Design Technicians for help in selecting the right fan for your application.

2. Suitable Applications

3. Will it Make my Workplace Safer?

Yes, when correctly configured, our extraction systems will work for years without issue, and will greatly improve the air quality of your facility. We have sales engineers ready to answer your questions to ensure you get the product you need.

4. Suitable Industries and Environments

For a full list of industries, refer to our Industry Solution Page

5. Available Models and Variants

For a list of available models, check out our catalog below.

6. Preventing the Spread of Airborne Fumes and Chemicals

Industrial workers are exposed to a variety of health hazards every day. As a result, these workers risk the possibility of becoming sick, ill, and in some cases, permanently disabled. According to a WHO estimate (WHO, 2000), unintentional poisonings led to 300,000 deaths in the year 2000.

It is our mission to reduce that figure, but only if the right equipment is used and configured properly. As part of our comprehensive customer service, we are dedicated to making the logistics of those questions as straightforward and coherent as possible, and as such will collaborate with you to ensure the best extraction system for your workers. This includes everything from accessibility and usability to longevity and reliability.

You can read more about the risks and preventions of fume extraction below:
OSHA
WHO

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14

Products & Prices

1. What is it?

Vehicle exhaust produces harmful carbon emissions. When engines are operated indoors, the risk of consuming those emissions is very high without an extraction solution.

We offer a range of products that offer capture-at-source extraction to minimize the risk often posed by mechanics shops and diesel garages. Our systems are designed to clamp directly to the exhaust system of any vehicle, removing the risk of injury or fire related to the heat of the vehicle exhaust system.

2. Suitable Applications

3. Will it Make my Workplace Safer?

Yes, this solution can make the workplace safer by capturing the toxic emissions at the source.

This process involves 3 steps:

Capture of the gases at source through suction nozzles
Transporting the gases through exhaust hoses to an exhaust fan
Transport the gases to the atmosphere.

4. Suitable Industries and Environments

Suitable industries include automotive, mining, and transportation.

5. Available Models and Variants

For a list of available models, check out our catalog below.

6. Configuration Selection Criteria

Below is a list of the information that needs to be gathered prior to selecting the appropriate VEHICLE EXHAUST ventilation system:

Max Engine HP/RPM: How much pressure does your exhaust system produce at idle?
Engine being run A - under load? or B - at idle?
Diameter of smallest and largest tailpipes? Do you require multiple fitments?
Configuration of tailpipes?
1. e.g. are they exposed, behind a grill, overhead stack, undercarriage, etc…?
Voltage and Amperage available
Fixed or Portable system?

7. Preventing the Spread of Airborne Fumes and Chemicals

Industrial workers are exposed to a variety of health hazards every day. As a result, these workers risk the possibility of becoming sick, ill, and in some cases, permanently disabled. According to a WHO estimate (WHO, 2000), unintentional poisonings led to 300,000 deaths in the year 2000.

The goal is to reduce that number, but it can only be accomplished if the correct equipment is used, and it is configured correctly. In order to make the logistics of those questions as straightforward and cogent as possible, our team will work with you to provide the best extraction system that fits your worker's needs. This includes everything from accessibility and usability to longevity and reliability.

You can read more about the risks and preventions of fume extraction below:
OSHA
WHO

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15

Products & Prices

1. What is it?

Learn More About our Portable Vehicle Exhaust on our New "Product Niche" Website

When diesel engines are started inside a building, toxic air contaminants are emitted into the breathing area. It is well known that continued exposure to these contaminants has been linked to cancer and other serious health disorders.

Fire and EMS facilities, service garages, maintenance shops, or anywhere that trucks, buses, heavy equipment, or fleets of vehicles are operated are especially vulnerable to these toxic pollutants.

The only proven method requires a "source capture" system, however, a system that pulls 100% of the exhaust emissions outside the building, through sealed hose or piping.

Lev-Co offers a complete line of Portable Vehicle Exhaust solutions for all makes and models of engines and equipment.

2. Suitable Applications

3. Will it Make my Workplace Safer?

Yes, but only when systems are configured, installed, and maintained for the correct use application. The filter selection is paramount to ensuring the reliability, effectiveness, and safety of the unit you use.

4. Suitable Industries and Environments

For a full list of industries, refer to our Industry Solution Page

5. Available Models and Variants

For a list of available models, check out our catalog below.

6. Preventing the Spread of Airborne Fumes and Chemicals

Industrial workers are exposed to a variety of health hazards every day. As a result, these workers risk the possibility of becoming sick, ill, and in some cases, permanently disabled. According to a WHO estimate (WHO, 2000), unintentional poisonings led to 300,000 deaths in the year 2000.

It's our mission to diminish that figure, but it only works if the correct equipment is used, and configured correctly. Our team works to make the logistics of those questions as straightforward and coherent as possible, and as such, will work with you to provide you with the best extraction system that fits your worker's needs. This includes everything from accessibility and usability to longevity and reliability.

You can read more about the risks and preventions of fume extraction below:
OSHA
WHO

View Products and Prices

16

Products & Prices

Lev-Co offers a wide variety of lightweight, flexible, abrasive-resistant, heat-tolerant, innovative technical hoses to provide solutions for a wide range of industrial & automotive applications. Here are some general design velocities when using "CAPTURE" Hoods:

Smoke (e.g. Welding):

Capture Velocity 100 FPM
Transport Velocity 3000 FPM
Minimum Face velocity 2355 FPM

Dust (e.g. Grinding):

Capture Velocity 500 FPM
Transport Velocity 4000 FPM
Minimum Face Velocity 4000 FPM

Gas (e.g. V.O.C.'s):

Capture Velocity 50 FPM
Transport Velocity 2000 FPM
Minimum Face Velocity 785 FPM

Mist:

Capture Velocity 100 FPM
Transport Velocity 2250 FPM
Minimum Face Velocity 1766 FPM

FOR MORE SUPPORT IN SELECTING THE RIGHT HOSE pls EMAIL us with details on your application at: sales@lev-co.com.

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17

Products & Prices

1. What is Covid 19?

Coronavirus disease (COVID-19) is an infectious disease caused by a newly discovered coronavirus.

2. What are the Covid-19 Health Concerns around Aerosol Spread?

Scientists and researchers are continually gathering new evidence about this disease, including routes of transmission. New data suggests that it is possible for COVID-19 to spread through the air among people who are in enclosed, crowded spaces with poor ventilation for a prolonged period of time. Factors contributing to the transmission may include activities that cause heavy breathing, such as singing, dancing, or exercise, especially without precautions such as wearing a mask or keeping a physical distance. However, close, person-to-person contact with an infected person before they show symptoms remains the most common method of transmission.

3. Can Mechanical Air Filtration Systems make Indoor Spaces Safe from Covid-19?

If you are in a room that can’t get enough outside air for dilution, consider an air cleaner, also commonly known as an air purifier. These machines remove particles from the air, usually using a filter made of tightly woven fibers. They can capture particles containing bacteria and viruses and can help reduce disease transmission.

The U.S. Environmental Protection Agency says that air cleaners can do this for the coronavirus, but not all air cleaners are equal. Before you go out and buy one, there are few things to keep in mind.

In light of the WHO's confirmation that there is "emerging evidence" of airborne transmission of Coronavirus Lev-co has put together a series of products that may assist you in designing and procuring solutions that limit the spread of airborne particles such as the coronavirus. In this section you will find equipment that addresses each of these components required in a ventilation system tailored to capture and filter and return air to your facility.

4. What do the Health Experts Say?

The EPA says, "When used properly, air cleaners and HVAC filters can help reduce airborne contaminants including viruses in a building or small space. By itself, air cleaning or filtration is not enough to protect people from exposure to the virus that causes COVID-19. When used along with other best practices recommended by CDC and others, filtration can be part of a plan to reduce the potential for airborne transmission of COVID-19 indoors."

5. How do Different Systems Work and What are the Practical and Health Concerns?

See our list of Control measures listed below. Please note, the practical and health concerns are listed within each CM.

6. What are the Common Components of a Covid-19 Ventilation System?

See Below:

Supply Air diffusers and/or nozzles to direct the clean air to the occupant
Transport ducts and hoses
Powered and non-powered filter housings and air cleaners
Electrical controls (VFD and differential Pressure controls)
Booster fans (Optional)
Capture devices

7. Available Models and Variants

For a full list of available models, check out our catalog.

8. In What kind of Environments can Mechanical Air Filtration Systems be Most Effective?

The environments that are best suited for mechanical ventilation are:

Nursing homes
Fitness clubs
Restaurants and bars
Meeting rooms
Lunchrooms and cafeterias

Here is an article from the CDC discussing this further: https://www.cdc.gov/niosh/docs/2003-136/pdfs/2003-136.pdf

9. What are the Pros and Cons of Local Exhaust Ventilation versus HVAC solutions? Are there any other Possible Solutions?

Local Exhaust Ventilation is best suited to the control and filtration of the COVID-19 virus because it controls the virus at the source and directs the virus aerosol to the filter unit, typically before it can be inhaled by another person. HVAC simply mixes or dilutes the contaminated air allowing other persons to breathe the air in before it is filtered from the virus.

Here are a few links to articles written about the capture and control of Covid-19 emissions:

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18

Products & Prices

1. What is Covid 19?

Coronavirus disease (COVID-19) is an infectious disease caused by a newly discovered coronavirus.

2. What are the Covid-19 health concerns around aerosol spread?

Scientists and researchers are continually gathering new evidence about this disease, including routes of transmission. New data suggests that it is possible for COVID-19 to spread through the air among people who are in enclosed, crowded spaces with poor ventilation for a prolonged period of time. Factors contributing to the transmission may include activities that cause heavy breathing, such as singing, dancing or exercise, especially without precautions such as wearing a mask or keeping a physical distance. However, close, person-to-person contact with an infected person before they show symptoms remains the most common method of transmission.

3. Can mechanical air filtration systems make indoor spaces safe from Covid-19?

If you are in a room that can’t get enough outside air for dilution, consider an air cleaner, also commonly called air purifiers. These machines remove particles from the air, usually using a filter made of tightly woven fibers. They can capture particles containing bacteria and viruses and can help reduce disease transmission. The U.S. Environmental Protection Agency says that air cleaners can do this for the coronavirus, but not all air cleaners are equal. Before you go out and buy one, there are few things to keep in mind. In light of the WHO's confirmation that there is "emerging evidence" of airborne transmission of Coronavirus Lev-co has put together a series of products that may assist you in designing and procuring solutions that limit the spread of airborne particles such as the coronavirus. In this section you will find equipment that addresses each of these components required in a ventilation system tailored to capture and filter and return air to your facility.

4. What do the health experts say?

The EPA says: " When used properly, air cleaners and HVAC filters can help reduce airborne contaminants including viruses in a building or small space. By itself, air cleaning or filtration is not enough to protect people from exposure to the virus that causes COVID-19. When used along with other best practices recommended by CDC and others, filtration can be part of a plan to reduce the potential for airborne transmission of COVID-19 indoors."

5. How do different systems work and what are the practical and health concerns?

See our list of Control measures listed below, Please note, the practical and health concerns are listed within each CM.

6. What are the common components of a Covid-19 Ventilation system?

See Below:

Supply Air diffusers and/or Nozzles to direct the clean air to the occupant
Transport ducts and hoses
Powered and non-powered filter housings and air cleaners
Electrical controls (VFD and differential Pressure controls)
Booster fans (Optional)
Capture devices

7. In what kind of environments can mechanical air filtration systems be most effective?

The environments that are best suited for mechanical ventilation are:

Nursing homes
Fitness clubs
Restaurants and bars
Meeting rooms
Lunchrooms and cafeterias

Here is an article from the CDC discussing this further: https://www.cdc.gov/niosh/docs/2003-136/pdfs/2003-136.pdf

8. What are the pros and cons of Local Exhaust Ventilation versus HVAC solutions? Are there any other possible solutions?

Local Exhaust Ventilation is best suited to the control and filtration of the covid virus because it controls the virus at source and directs the virus aerosol to the filter unit, typically before it can be inhaled by another person where HVAC simply mixes or dilutes the contaminated air allowing other persons to breathe the air in before the air is filtered from the virus.

Here is a link to our NEW respirable hazards Page:
Covid-19 and ventilation, everything you need to know!

Here are a few links to articles written about the capture and control of Covid-19 emissions:

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