Biosafety methods

Biological Safety Cabinets

BSCs use HEPA (high-efficiency particulate air) filters to filter infectious particles from an airstream. BSCs may be used at BSL-1 to maintain an environment of sterility that is not achieved on the open bench.
At BSL-2, the BSC is relied upon to protect the worker and the environment from procedures that are likely to generate aerosols.
However, .