The Class III cabinet exhaust fan is usually separate from the exhaust fans in the laboratory's ventilation system. The schedule for subsequent certification is shown in the table below. Include a list of those cabinets falling into this category. Biological safety cabinet is NOT certified for use with biohazardous agents. Certification Location Cabinets must be certified in place at their operational permanent location.
Clean benches provide an air filtered environment for manipulation of nonhazardous materials.
Clean benches protect the product but not the worker.