... operator need not to contact the biological safety cabinet directly, it’s favorable for preventing cross ... 1Waterproof Socket2DisplayVFD displayControl SystemMicroprocessorAirflow System:70% air recirculation,30% air exhaustMaterialWork zone interior is made of 304 ... switch, UV lamp and Fluorescent LampOptional AccessoryArmrest, Air curtain tester, Formalin fumigation sterilizer, Ammonium hydrogen ...