... carbon mask 3.2-ply, 3-ply, 4-ply 4.excellent service 5.high quality Any of the following types of masks is available:disposable carbon face mask, non ... 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 ...