Disposable KN95 Face Mask Material: 4ply(non-woven+Hot air cotton+meltblown cloth+non-woven) Application:Personal protection,PM2.5 protection Filtering effect:95 percent Use for hospital,laboratory,food industry,dust free workshop,electronic manufacturers. Product Features 1.Multi layer filter structure protection 2.Ear belt / head-mounted 3.Comfortable and breathable 4.Good protective effect 5.Comfortable soft elastic band 6.Soft sponge nose pad 7.Aluminum adjustable nose clip