The mask is made of 3 layers of high-quality non-woven fabric; it has a stronger filtering effect and is more warm and breathable.Comfortable elastic earloop, extra-soft ear loops eliminate pressure to the ears. Inner layer is made of soft facial tissue, no dye, gentle to the skin.These Masks Should Be Disposed of after Each Use Keep the Black-side Outside and the Nose Clip on the Upper Side.Includes 50 pcs per box black disposable face masks, these are enough to meet your family demands.We have large quantity stock in LA,pls call us for more info!