Backdraft exhaust hood

Back-Draft exhaust hoods and systems can be an essential component of a Local Exhaust and Ventilation system.

Key Design Criteria:

Capture velocity: When designed with capture velocity in mind, Back-Draft hoods are an excellent 'No-Fuss' way of removing respirable hazards and improving air quality in your facility. All aerosols have a speed at which they can be drawn into a hood. You must be able to capture it if you are going to control it.

Face Velocity: Understanding the appropriate face velocity is not only essential for the proper capture of airborne pollutants, but it will also determine the noise generated at the hood. It is common to see poorly designed LEV systems with unacceptable noise levels.

Transport Velocity: Evaluating your hood's transport velocity will help you understand whether you will have the contaminant fall out of the airstream and stay in your hood. This could lead to a falling hazard or, perhaps worse, a fire hazard.

Conclusion:

If you take the time and follow these and other relevant design criteria & recommendations such as ASHRAE, SMACNA, ACGIH, you will be well on your way to a successful ventilation solution.

06-006
Back Draft Hoods & Booths - Sizes and flowrates to suit
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Back draft hood which draws contaminants away from workers’ breathing zone without hindering movement.

Welded, slotted back draft hood.
Attachments
001 - Equipment Specification and Dimension Drawings:
006 - Local Exhaust and Ventilation Duct 3D Layouts:
017 - LEV CAD Blocks (Auto CAD, RVT, SLDPRT):
08-001
Fume/Booth - Odors and Lights dusts - 2’ X 2’ Opening (230 CFM)
fume-filter-booth-gases-dust - Main Image
A ductless, portable desktop and bench top system for the removal of fumes, dust, smoke, odors and gases in a compact design.
Attachments
001 - Equipment Specification and Dimension Drawings:
002 - Brochures:
003a - Client Installations - Case Studies with Video:
004 - Product Videos:
017 - LEV CAD Blocks (Auto CAD, RVT, SLDPRT):
06-004
Panel Filter Power Booth Modules (size/flow to suit)
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5500 CFM free standing Panel filter collector packed into a 2' x 4' footprint is a complete dust collection system, standard with (12) MERV11 24x24x6 filters (42 sq. ft. each).


It can be used as stand alone unit or as part of an expandable dust control booth.
Attachments
001 - Equipment Specification and Dimension Drawings:
002 - Brochures:
06-005
PB Back Draft Modules - Dust - Self cleaning filter system built in - 4’ X 4’ BD Hood (5,000 CFM/module)
pb-back-draft-module - Main Image
Free standing dust control booth.

Comes complete with: 6 Clean 2® cartridge filters, dual dust drawers, slotted inlet hood, 5 HP 208-230/460/575/3/60hz motor with non-sparking AMCA Type B wheel, Vibra-Pulse® cleaning.