... film 1. Standard:FFP3 2. Material:Non-Woven Fabric +Melt Blown Filter 3.valve:with4.single used FFP3 ... /withoutActive Carbonwith/withoutstandardFFP1,FFP2,FFP3,N95,N99,R95MaterialNon-Woven Fabric + Melt Blown FilterCor:White/BlackLogo And Images:Any ... With Little Dust9.Conforms To International Standard3.Application:Rubber,Synthetic Fur,Metal Casting,Cement,Wood Processing,Electronic,Semi-Conductor, ...