Exceptional Performance for Out-in-the-open Operations

Donaldson Torit 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.​​​​​​​​​​​​​​​​​​​​

Donaldson Torit Downflo Workstation

290_Downflo_Workstation_CollectorsOutperforms All Other Collectors

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.





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
10-year warranty
Product Literature
Downflo® Workstation Dust Collectors Brochure
Downflo Workstation DWS 4-1 to 4-4 and 6-1 to 6-4

Engineered For Reliable Performance

Downflo Workstation Booth Packs

DWSFluentSophisticated FLUENT®* airflow modelling 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 accessories


Filter Media Pleats

The innovation of shorter and stiffer filter pleats helps minimize dust entrapment and simplify filter cleaning. By reducing the height of the filter pleats from the standard 2 inches to 1.5 inches, the pleat wall is less likely to collapse or bend, which can encapsulate dust and prevent its expulsion.

Downflo Oval Filter (Left) VS Standard Filter (Right)



Collector DesignStandardOptional
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 FIltersStandardOptional
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 SystemStandardOptional
Primed inside and out, exterior surfaces finished blue 
Custom Color 
Electrical Controls, Gauges, and EnclosuresStandardOptional
Solid State Timer in NEMA 4 Enclosure 
Delta P or Delta P Plus Control Panels 
IEC Control Panel 
Magnehelic** Gauge 
Photohelic** Gauge 
Booth OptionsStandardOptional
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 
Booth Lighting Packs
    • Industrial Light Fixtures
  • Dust Tight Lens Fixtures
  • Flush Light Fixtures
Sound Level***StandardOptional
5 HP & 4 kW Power Packs -63 dB(A) 
​7.5 HP & 5.5 kW Power Packs -68 dB(A) 
​LAEq Pulse Average84-86 - dB(A) 
Division 1 

*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 118 feet per minute and loading up to four inches 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.
**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 1.5m high and 1m 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.