... filter.every piece can passed the UAS federal standard 209E,class 100.Install the USA manometer,clear instructions on the 2 ... s)0.45±20%Purification levelclass 100Efficiency99.95%Clean bench shake half-peak valueClean bench sepatated with whole frame,no shakeShell materialCold ... 60<62Position of testing noise20 meters in front of the clean bench,1.2 meters from the floorPower220v,50HzRated power(kw) ...