Industrial Downdraft Bench & Table

Model # SS-440-DDB

Industrial Downdraft Bench
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The Model 440 Industrial Downdraft Bench & Table is an effective source-capture solution for the extraction of fume, dust, and smoke at the work surface level. This safety engineering control helps to protect the operator’s breathing zone and surrounding environment from hazardous airborne contaminants. Sentry Air Systems offers both standard and custom stainless steel downdraft benches that are equipped with a powerful industrial air cleaner and high-quality HEPA filtration media. This filter media is up to 99.97% efficient on particles 0.3 microns and larger and the air cleaner provides up to 700 CFM of air volume. ASHRAE filtration, heavy-duty Activated Carbon, and specialty-blended filter media is also utilized in certain applications.

These negative-pressure systems are designed to eliminate costly exhaust systems, reduce energy losses, and aid in employee protection by capturing pollutants at the source of emission. Typical applications include: solvent vapor control, solder fumes, light grinding, epoxy fume control, sanding, buffing, brazing, welding, powder control, and a variety of other industrial applications.

Custom design options and modifications can be discussed with a Sentry Air Applications Specialist.

Industrial Downdraft Table
Request Specs for Individual Options
(48"W x 30"D x 35"H Featured)
Work Area:
Stainless Steel ¼" Perforated Work Area
30” W x 22” D x 16g, 51% Open Space
Plenum Box:
6" or 10" Round Outlet
Bench Material:
304 Stainless Steel Surface
Chrome-plated foot bar
Cabinet Dimensions:
22.5" D x 20" W x 19.5" H
Approx. 150 lbs.
Cabinet Material:
16 ga. carbon steel
Fractional Horsepower
Available Filter
HEPA Filter - Up to 99.97% efficient on particles down to 0.3 microns in size.
ASHRAE Filter - Up to 95% efficient on particles down to 0.5 microns in size.
ULPA Filter - Up to 99.9995% efficient on particles down to 0.12 microns in size.
Activated Carbon & Specialty-Blended Filters - Efficiency varies per chemical.
Air Volume:
Variable Speed Control Standard on 115
700 CFM High, Down to 50 CFM Low
On/Off Toggle Switch Standard on 220
115/1/60, 2.5 amps
220/1/50, 1.5 amps
Sound Level:
Approx. 60 dba @ 3'
Limited two-year warranty from date of shipment on defects due to materials or workmanship.
Patented Design:
U.S. PATENT #5,843,197

All specifications are nominal and subject to change without notice. Not intended for explosive or highly flammable applications. (i.e. when the Lower Flammability Limit is exceeded for any given chemical). Please consult the specific MSDS for questions regarding flammability limits.


Quick Change Pre-Filter
Allows easy access to pre-filters.
Remote Control Box
Controls unit operation remotely.
Magnehelic Gage
Monitors filter saturation
Hour Counter
Displays hours unit has
been in operation.

100 Series (Up to 80 CFM)
200 Series (Up to 100 CFM)
300 Series (Up to 350 CFM)
400 Series (Up to 700 CFM)
450 Series (Up to 950 CFM)
500 Series (Up to 1300 CFM)
Extractor Arms (Exhaust Hoses)
Accessories (For All Products)

Additional Configurations 400 Series - Up To 700 CFM
450 Series - Up To 950 CFM