disposable/ surgical/ medical face mask, strong filtration, with ISO 9001:2000, ISO13485, certified. Feature strong filtration and against the aerosol in the air Material non-woven Package 50pcs/polybag 5000pcs/ctn Function 1. soft, lightweight fortable, odorless 3. form fitting design 4. fiberglass free 5. latex free earloops(option) 6. non-irritating to skin. Permits air passage. Certified: ISO 9001:2000 ISO13485