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.HEADBAND STYLE - The double elastic head straps are soft and gentle to eliminate the pressure behind the ears compared with the style with the ear strap behind the ear, this head rope will be more comfortable, better airtightness and the tightness will be safer than the ear elastic style mask even when worn for a long time.N95 MASK WIDELY USE - When you go to crowded public places and enclosed public spaces such as office, school, malls, party and busy city streets.