... 4Timer function, VFD display 6 Filter life Class II A2 Biological Safety CabinetBiological Safety CabinetBiological safety cabinets are ... are three types of biological safety cabinets:Class II: The Class II biological safety cabinet is an open-front, ... , UV lamp and Fluorescent LampOptional AccessoryArmrest, Air curtain tester, Formalin fumigation sterilizer, Ammonium hydrogen carbonate neutralizer SEL- ...