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Ductless Downflow Workstations

  • Available in 3 standard sizes, in metal or polypropylene construction, totaling 6 models.
  • Wider units, comprising two or more workstations can be positioned side-by-side with junction connections option.
  • Downward airflow protects operator from fume and particle hazards. 
  • Unrestricted front and side access to work area. 
  • Filter blockage alarm.
  • The Air Science high capacity filters are easy to access, easy to change.
  • A unique filter clamping design eliminates bypass leakage outside the cabinet.
  • Redesigned DWS offers increased internal height.


DWS Downflow Workstations are ductless fume hoods designed to protect the user and the environment from hazardous vapors generated on the work surface. Unrestricted front and side access permits applications requiring complex user involvement. Downward airflow in the chamber protects the operator.

Model Specifications

Internal Height: 15.75″  |  400 mm
External Width: 24″  |  610 mm
External Depth: 22.75″  |  580 mm
External Height: 31.5″  |  800 mm
Shipping Width: 40″  |  1016 mm
Shipping Depth: 40″  |  1016 mm
Net Weight: 120 lbs  |  55 kg
Shipping Weight: 160 lbs  |  73 kg

Construction: Epoxy-coated Steel

OSHA: OSHA Standard -29 CFR, Safety and Health Regulations for General Industry, 1910.1450: Occupational exposure to hazardous chemicals in laboratories. Part B, definition, laboratory type hood. This product may assist you with compliance or as part of your chemical hygiene plan. Please consult your Safety Officer and/or Industrial Hygienist.
Environmental: ISO 14001 : 2015; ENERGY STAR® Partner
Quality: ISO 9001 : 2015

Base Cabinet, Fixed (Metal): CART-MCC-25
Base Cabinet, Fixed (Polypropylene): CART-SSC-25
Base Stand, Mobile, with Casters: CART-25
Black*: BLACK
Filter Saturation Alarm*: FSA
Fire Safety Cabinet Base: CART-FSC-25
Front Sash Attachment*: SASHDWS-24
Junction Connections*: JUNCT-DWS
Polypropylene Construction*: DWS24-PP
Rear Shelf: DWS-S
Side Windows Attachment*: SIDE-DWS
Spill Tray: TRAY-DWS24
Stainless Steel Hanging Rod*: HANGR-DWS24
* Factory installed; specify when ordering

Airflow Direction: Downflow
Face Velocity: 80
Main Filter: HEPA (ULPA optional)
Carbon Filter: Activated Carbon (optional)
Biological Filter: HEPA or ULPA (optional)

Electrical Voltage: 230V, 50Hz

Technical Info

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