Ductless Downflow Workstations
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.

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DWS™ Downflow Workstations are high efficiency ductless fume hoods designed to protect the user and the environment from hazardous vapors generated on the work surface. Unrestricted front and side access to the ductless workstation facilitates applications requiring complex and intensive operator involvement, while downward airflow in the chamber protects the operator.
DWS Downflow Workstation Features & Benefits
- 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.
- High capacity air handling system delivers face velocity of 80 fpm at the work surface.
- A low airflow alarm warns of insufficient face velocity.
- The Air Science filter assembly is easy to access, easy to change.
- A unique filter clamping design eliminates bypass leakage outside the cabinet.
Ductless versus Ducted Venting Options: The Benefits of a Ductless Laboratory
Air Science® manufactures a complete series of high efficiency ductless fume hoods, ductless workstations, laboratory filtration products, and custom enclosures designed to protect the user, the process and the environment from hazardous vapors, fumes, and particulates. This application note explains the benefits of their ductless fume hoods.
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