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Downflo® WorkStation

Downflo® WorkStations (DWS) fit anywhere on the plant floor and apply NO restrictions to worker movements or visibility. The full line of WorkStations is designed specifically for those in-plant areas where dirty and / or noisy operations are out in the open—grinding, sanding, chipping, batch mixing or welding.​​​​​​​​​​​​​​​​​​​​

The Downflo WorkStation’s advantages are found in the collector’s exclusive design and proprietary components. Featuring a ledgeless design in combination with proprietary Ultra-Web® filter media and ExtraLife™ cleaning technology, the DWS delivers exceptional performance in metalworking, woodworking, and process applications where high filtration efficiency and ledgeless construction is often a requirement.

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DFO Offers: Flexible, Modular, Self-Contained Workstations

  • Energy savings – recirculate clean air and reduce the need for costly make-up air
  • Proprietary Ultra-Web cartridge filters provide cleaner air longer
  • Ledgeless construction minimizes dust build up inside the collector
  • Easy filter access requires no tools
  • Reversible louver inlets
  • No hoods or ductwork required
DWS FLUENT airflow modeling

Engineered for Reliable Performance

Downflo Workstation Booth Packs

Sophisticated FLUENT® airflow modeling software revealed that DWS booth packs are designed for adequate and consistent capture velocities at the booth opening and throughout the booth; a reflection of Donaldson Torit®’s commitment to technical research and development.

  • No system imbalance
  • No air turbulence
  • No hot spots
  • No uncomfortable draft inside the booth that can upset working conditions

DWS Models 4-1 to 6-4

  • 8 standard model sizes
  • Customized sizes available
  • Many options and accesories
Collector Design Standard Optional
Ledgeless Construction 14 Gauge  
Tubesheet, Base Plate 10 Gauge  
High Performance Acoustical Airfoil Fans  
Aluminum Fan Wheels   
TEFC Motors 5, 7.5 HP, 60 Hz  
TEFC Motors 4, 5.5 kW, 50 Hz  
Fan Compartment Fully Lined w/Silencer Foam  
ExtraLife Filter Cleaning System  
Compressed Air Required 50 PSIG  
Fully Lined and Silenced Clean Air Plenum  
Reversible Open Louver Inlet  
Quick and Easy Filter Access  
Acoustical Panel  
Two Plastic Dust Drawers per Power Mod  
Galvanized Steel Dust Drawers  
Integral Silencer  
Chamber Silencer  
Caster Packs  
Downdraft Bench Pack  
Bag-Out Bag (Filter & Dust Drawer)  
Sprinkler Pipe Coupling  
Sprinkler Pack Assembly  


Cartridge Filters Standard Optional
Ultra-Web (MERV* 15)  
Ultra-Web SB (MERV 15); Ultra-Web AS (MERV 15); Thermo-Web (MERV 14); Ultra-Tek (MERV 12); Fibra-Web (MERV 14); Torit-Tex (MERV 16)  
HEPA/ASHRAE Afterfilters  


Paint System Standard Optional
Primed inside and out, exterior surfaces finished blue  
Custom Color  


Electrical Controls, Gauges, and Enclosures Standard Optional
Solid State Timer in NEMA 4 Enclosure  
Delta P or Delta P Plus Control Panels  
IEC Control Panel  
Magnehelic** Gauge  
Photohelic** Gauge  


Booth Options
Standard Optional
Canopy w/Side Shields - Painted steel construction side panels swing out 90  
Soft-Wall Weld Curtains - Galvanized steel frames with clear PVC roof panels and blue translucent PVC side panels approved for welding  
Soft-Wall Acoustical Curtains - Galvanized steel frames with clear PVC roof and gray acoustical side panels.  
Hard-Wall Galvanized Panels  
Hard-Wall Acoustical Panels  
Industrial Light Fixtures, Dust Tight Lens Fixtures, Flush Light Fixtures  


Sound Level**  
5 HP & 4 kW Power Packs - 63 dBA  
7.5 HP & 5.5 kW Power Packs - 68 dBA
LAEq Pulse Average 84-86 - dBA


Warranty Standard Optional
10-Year Warranty  
*The Minimum Efficiency Reporting Value (MERV) of this filter cartridge has been determined through independent laboratory testing using ASHRAE 52.2 (2007) test standards. The MERV rating was determined at a face velocity of 36 meters per minute / 118 feet per minute and loading up to 101.6 mm / 4 in. water gauge. Actual efficiency of any filter cartridge will vary according to the specific application parameters. Dust concentration, airflow, particle characteristics, and pulse cleaning methods all affect filtration efficiency. MERV 15 available in the U.S. only.
**Magnehelic and Photohelic are registered trademarks of Dwyer Instruments, Inc.
***Sound measurements were taken in a hemianachoic chamber and under free-field conditions and do not reflect the influences of actual operating environments. Standard sound pressure levels were taken at an operator position of 1.5 m / 4.9 ft high and 1 m / 3.3 ft from each of the four sides of the cabinet.


Ultra-Web Technology Provides Filters that Deliver

Proven and proprietary Ultra-Web technology delivers longer filter life, cleaner air and greater cost savings.