NIOSH approved N95 rating Adjustable nose clip Nose foam Stapled headbands Cool Flow Exhalation Valve Use for solid particulates and liquid mists in concentrations not exceeding 10X PEL/OEL Material Composition: Straps - Polyisoprene Staples - Steel Nose Clip - Aluminum Nose foam - Polyurethane Filter - Polypropylene Shell - Polyester Coverweb - Polypropylene Valve - Polypropylene & Polyisoprene This respirator contains no components made from natural rubber latex Approximate weight of product: 0.55 oz