1.earloop/tie-on 2.activated carbon mask 3.2-ply, 3-ply, 4 ... mask, active carbon face mask, nonwoven active carbon face mask, Composition: 100% polypropylene non-woven and melt-blown fabric, hypoallergenic, fiberglass free, latex free, fluid resistant with ... enclosed padded nose piece, high filtration.Packaging: dispenser box of 50 masks, 40 boxes per master carton cleanroom face mask with elastic ...