BHC-1300IIA/B2 Clean Biological Safety Cabinet  Clean biological safety cabinet is necessary in animalcule lab, especially in the condition needing protection measure, such as medicine, pharmacy, scientific research and so on.  Main characters  1 Air insulation design to avoid cross pollution inside and outside air circulation within 30% ,70% discharge, vertical laminar negative pressure.  2 Equipped with spring up/down movable door in the front and back of work bench, flexible and convenient to locate  3 Equipped with special filter on ventilation to keep vented air conforming to national standard.  4 Contact switch adjusts voltage to keep wind speed in working area in ideal state all the time.  5 Operate with LED panel.  6 The material of the work area is 304 stainless steel.      No. Index/ModelBHC-1300IIA/B2 Clean Biological Safety CabinetCleaning levelGrade 100(209E U.S. Federal)Number of bacteria≤0.5per utensil.hour(90mm utensil)The average wind speed- inner side0.38+-0.025m/sThe average wind speed- middle0.26+-0.025m/SThe average wind speed-inside0.35+-0.025m/sAir tightness