Biological Safety Cabinets and Laminar Flow Clean Benches

Certification Scheduling

HEPA filtered supply air only Laminar Flow Clean Benches (LFCBs) as well as HEPA filtered supply and exhaust Biological Safety Cabinets (BSCs) are tested, certified, and repaired on an annual basis by specialists contracted by Purdue. Questions about these units should be directed to Rachael DeRudder.

REM will periodically request that you supply information regarding the nature of the use of these units via the Agent Inventory Form.

Filter Changes and Disposal

Filter changes are ordered for HEPA-filtered cabinets when deemed necessary by the NSF-certified technicians with whom Purdue contracts for testing and servicing of the units. Before a filter or filters can be safely and properly removed and replaced, it is often necessary to completely decontaminate the cabinet and filter(s). Complete decontamination refers to a process in which the unit and filter(s) are saturated with a disinfecting agent.

If you have questions or comments about your HEPA filtered cabinet(s) please direct them to Rachael DeRudder or Robert Golden.


REM keeps an inventory of all of the chemical fume hoods, biological safety cabinets, and laminar flow clean benches on campus. For that reason, changes in location of these types of hoods should be reported immediately to the appropriate individual.