This product has been discontinued by the manufacturer. Please contact us for the closest replacement - Certification of Biological Safety Cabinet based on NSF 49 (Annex F) or EN 12469:2000: a. Airflow Velocity Test (Inflow) b. Airflow Velocity Test (Downflow) c. PAO Filter Leak Test d. Light intensity Test e. Noise level Test f. Smoke Pattern Test g. Site Installation Assessment Test h. UV Intensity Light Test