Dust mask 1) Made with spunbonded polypropylene 2) Naturally contoured shape for comfort. 3) Fits comfortably with eyewear 4) Large filter area allows for cool,easy breathing. 5) Metal nosepiece adjusts to accommodate most facial sizes. This mask used for a wide range of non-toxic nuisance dusts and mists associated with pollen, sweeping, mowing, as well as for comfort against the uncomfortable effects of cold air. The material is polyester. Color: white, blue, red (1) MATERIALS Polyester (2) DIMENSION 200g, 250g, 300g (3) PACKING50pcs/inner box, 1,000pcs/ctn