Dust Mask,PP Dust Respirator 1)15 years manufacturer 2) ... Anti dust and mist 4)dust mask Dust Mask,PP Dust Respirator1)15 years manufacturer2)certificated by ISO9001,EN146833 ... )Anti dust and mist4)PP meltblown It is widely used in medical-health departments, ... ,160g,180g,200g,220g,240g Packing: a. 50pcs/inner box, 1,000pcs/ctnb. 50pcs/polybag, 2,000pcs/ctnc. ...