Biosafety cabinet airflow rate

A Class II, Type B2 cabinets must maintain a minimum average inflow velocity of 100 fpm through the sash opening and require a dedicated exhaust

Mar 15, 2022 rate. The AFBSS narrowly Biological safety cabinets: simulation and quantifying of airflow perturbation caused by personnel activities.IntroductionMaterials and MethodsResultsDiscussion

New HEPA Filter Curve (Torque & RPM needed as flow rate varies). Loaded HEPA accurate airflow by more than tenfold compared the PSC-powered biosafety cabinet.

Type A1 cabinets have an inward airflow of 75 feet per minute (fpm), and recirculate approximately 70% of discharge air through the supply HEPA filter back to the work zone.

What happens if airflow is interrupted in a biological safety cabinet?

Airflow in a biological safety cabinet or BSC can be interrupted, altered, and changed by many different factors.
These interruptions can lead to potential exposures and/or product contamination This is a smoke generator.
It is used to demonstrate how airflow is affected by operations inside and around a BSC.

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