Dust Mask,Polyester Respirator 1)15 years manufacturer 2)certificated by ISO9001,EN14683 3)Anti dust and mist 4)Polyester Dust Mask,Polyester Respirator1)15 ... years manufacturer2)certificated by ISO9001,EN146833)Anti dust and mist4)Polyester A. This mask used for a wide range of non ... the uncomfortable effects of cold air. B. The material is polyester. C. Color: white, blue, red D. Weight: 200g,250g, ...