Enhanced And Secure Fit Nose Bridge With Adjustable Straps FEATURES Comfortable and secure nose fitment Soft and durable COMPOSITION Non-woven fabric, melt-blown non-woven Polypropylene, polyester elastic cord straps, aluminum nose clips. This mask contains no components made from natural rubber latex. APPLICATION Use to filter particles from metals, wood, minerals, coal, iron ore, cotton, pollen, flour and certain other substances, as well as liquid or non-oily particles from aerosols. MASK PERFORMANCE NaCI filtration efficiency 95% Inhalation/exhalation resistance 25mmH2O CERTIFICATION NIOSH number: TC-84A-8131 FDA approved.