NIOSH APPROVED N95 MASK RESPIRATOR - Approval Number: 84A-7447 - certified for at least 95% particulate filtration efficiency. Manufacturer: SUZHOU SANICAL PROTECTIVE PRODUCT MANUFACTURING CO., LTD. FILTER MEDIA - This N95 Masks has four filter layers, PP spunbond outer layer, PP needle-punched nonwoven inner layer 19 g, PP meltblown high filtration layer, PP spunbond layer, PP meltblown high filtration layer have double layer thickening filter media. ADJUSTABLE NOSE CLIP - 3D nose clip design with inner and outer layers N95 Mask. This is an adjustable nose bridge design n95 filter respirator with a double-layer nose bridge design. It's very comfortable and breathable, soft inner foam nosepiece made of black PU foam, hidden adjustable outer nose clip made of iron wire+plastic nose clip. Accord with Human face design.