... 102RDescription:Type PRF-102R is a POWERED AIR PURIFYING RESPIRATOR main body. Dust and gas proof function is determined by ... 102HD, 102W and 102G to filtrate acidic gas, alkalescent gas, neutral gas and organic gas synchronously. Filtrating precision 0.3μm,Dust ... poisonous and harmful ill odors and acidic gas, alkalescent gas, neutral gas and organic gas synchronously.If the environment is anoxic (i ...