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COVID-19 Ventilation & Air Filtration: Retrofit Solutions

COVID-19 Ventilation & Air Filtration: Retrofit Solutions

1. What is Covid 19?
Answer: 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?
Answer: 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?
ANSWER: 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?
ANSWER: 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?
ANSWER: See our list of Control measures listed below, Please note, the practical and health concerns are listed within each CM:

5.5 What are the common components of a Covid-19 Ventilation system
ANSWER: 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

6. In what kind of environments can mechanical air filtration systems be most effective?
ANSWER: 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

What are the pros and cons of Local Exhaust Ventilation versus HVAC solutions? Are there any other possible solutions?
ANSWER: 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 are a few links to articles written about the capture and control of Covid-19 emissions:
(12-014) Linear Workstation Ventilation System
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Unique New Product against Virus and Bacteria

VBF/SPOT “2-Zone” creates “Clean Air Spaces” where you need them and cleans at the same Time the whole Room.

Complete “Plug and Play” product with Filter Unit and 1-4 Spot Diffusions Arms.

10-times as efficient in cleaning the Air where you want to.

VBF/SPOT“ 2-Zone HEPA H14 Defence” filtrates all the air in the room 6 times/hour (Zone-1) and the air over and around the table 50-60 times/hour (Zone-2)! The amount of Virus and Bacteria in the room will decrease with 98-99% after a short time and directly with over 99.995% where you need it. Clean Air Zones are created.

The Spot Diffusion Hood is extremely easy to move to the area where it is needed. You can move it in all directions and up/down and it stays where you put it.

By just having a normal conversation aerosolized virus and bacteria remain in the air for long periods. This can transmit severe colds and Corona virus. “2-Zone HEPA H14 Defence” reduces that risk. The Zone over and around for example a table is around 5m3. That means that the air is totally changed almost every minute (depending on which VBF/SPOT Filter Unit you choose and how many Spot Diffusion Arms).The risk of being infected by Virus and Bacteria will substantially decrease.
(12-02) MSF120-CV - In-Line Filtered Supply & Powered Return from Floor Level - With Fan (1,000-2,000 CFM)
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1000 - 2000 CFM Ducted Industrial Air Cleaner that comes standard with (1) 4” deep 30% pleated pre-filter, (1) 65% bag filter, 120ft² of media, and a 2.0 HP TEFC motor 208-230/460/575/3/60Hz. Unit can be upgraded with different filter and fan packages to suit a variety of applications and contaminants.
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(12-03) MSF240-CV - In-Line Filtered Supply & Powered Return from Floor Level - with Fan (2,000-4,000 CFM)
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2000 – 4000 CFM Ducted Industrial Air Cleaner that comes standard with (2) 4” deep 30% pleated pre-filter, (2) 65% bag filter, 120ft² of media ea. and a 5 HP TEFC motor 208-230/460/575/3/60Hz. Unit can be upgraded with different filter and fan packages to suit a variety of applications and contaminants.
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(12-04) MSF360-CV - In-Line Filtered Supply & Powered Return from Floor Level - With Fan (3,000-6,000 CFM)
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3000 – 6000 CFM Ducted Industrial Air Cleaner that comes standard with (3) 4” deep 30% pleated pre-filter, (3) 65% bag filter, 96ft² of media each, and a 10 HP TEFC motor 208-230/460/575/3/60Hz. Unit can be upgraded with different filter and fan packages to suit a variety of applications and contaminants.
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(12-05) MSF480-CV - In-Line Filtered Supply & Powered Return from Floor Level - With Fan (4,000-8,000 CFM)
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4000 – 8000 CFM Ducted Industrial Air Cleaner that comes standard with (4) 4” deep 30% pleated pre-filter, (4) 65% bag filter, 96ft² of media each, and a 15 HP TEFC motor 208-230/460/575/3/60Hz. Unit can be upgraded with different filter and fan packages to suit a variety of applications and contaminants.
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(12-06) MS200-CV - Non-Powered Filtration & Powered Return from Floor Level - No Fan (1,000-2,000 CFM)
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Blower-less filtration housing designed with up to 4 stages of filtration for industrial applications. Designed to handle airflow between 1000 & 2000 CFM , (multiple units can be combined for greater CFM). Filter system comes standard with (1) 4” deep 30% pleated pre-filter, (1) 65% bag filter, 120ft² of media. System can be upgraded with different filter and fan packages to suit a variety of applications and contaminants.
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(12-07) MS202-CV - Non-Powered Filtration & Powered Return from Floor Level - No Fan (2,000-4,000 CFM)
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Blower-less filtration housing designed with up to 4 stages of filtration for industrial applications. Designed to handle airflow between 2000 & 4000 CFM , (multiple units can be combined for greater CFM). Filter system comes standard with (2) 4” deep 30% pleated pre-filter, (2) 65% bag filter, 120ft² of media (per filter). System can be upgraded with different filter and fan packages to suit a variety of applications and contaminants.
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(12-08) MS203-CV - Non-Powered Filtration & Powered Return from Floor Level - No Fan (3,000-6,000 CFM)
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Blower-less filtration housing designed with up to 4 stages of filtration for industrial applications. Designed to handle airflow between 3000 & 6000 CFM , (multiple units can be combined for greater CFM). Filter system comes standard with (3) 4” deep 30% pleated pre-filter, (3) 65% bag filter, 120ft² of media (per filter). System can be upgraded with different filter and fan packages to suit a variety of applications and contaminants.
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