... respiratory resistence 3.High filtrability 4.Cup Shape Style Dust face mask 1) Meeting the international quality criteria(Europe): ... disintegration projects, cement, agriculture and animal husbandry, cutting dust, pollutes from heavy metal. Packing: 50PCS/box, 20boxes ... ABOUT US:We can mainly produce:1> nonwoven face mask, dust mask, paper mask, nonwoven bouffant cap, nonwoven clip cap, nonwoven ...