Biological safety cabinet suitability

A Class II biological safety cabinet provides protection for both the worker and the sample or product, making it suitable as a sterile compartment for cell culture. This type of cabinet is the most versatile and most common, with face velocities similar to those of Class I. There are four types of Class II cabinets, the main features of which are discussed below. Note that there are additional differences among the types in Class II (types Al, A2, Bl and B2), primarily concerning the geometry of the air flows and placement of HEPA filters. 

BIOLOGICAL SAFETY CABINET CLASS I A type of fume hood with an open face and fixed opening. Air is drawn in from the room and exhausted through the hood. This design is good for personnel protection but not protection of the research products. Suitable for LOW RISK or MODERATE RISK biological agents. 

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