UNC EHS Training
UNC EHS Training

Proper Use of Biological Safety Cabinets Contains Aerosols

Biological Safety CabinetThe biosafety cabinet is used to protect the worker and the environment from procedures that may generate an aerosol.

Some models used for animal cage changes may require the HEPA filter to be changed more frequently due to the dust that is generated.

Class II BSC: This Biological Safety Cabinet provides personnel, environmental, and product protection.

  1. There are 4 types of Class II biosafety cabinet.
    1. Type A1, A2, B1 and B2
    2. Type A cabinets are stand alone, re-circulating, non-ducted cabinets. Chemicals and anesthetic gases must not be used in re-circulating cabinets. Gases can build up in the cabinet and cause an explosion.
      Most BSCs in DLAM are Type B2 (total exhaust cabinets), ducted, non re-circulating.