Fabric: PP non-woven fabric  Form fitting design  Soft non-irritating to skin Highly efficient active carbon prevents low toxic particles and absorbs nuisance organic acid vapors Static dealt filter lays, efficiently filtrates and absorbs industrial toxic dusts, fumes, mists, gases and vapors against silicosis  Soft nose foam and adjustable nosepiece ensures customized shape and increase the workers' comfort and acceptance Excellent water repellent and air permeability Fringe seal avoids open layer around the edges Maintenance/cleaning free, convenient to use Recommended applications: hardware, plating, mining, chemical, sterilizing, spray, agriculture, solution cleaning, painting, ink and dyeing, electronic, food processing, workshops  Inner packing: 20pcs/inner box  Outer packing: 400pcs/ctn  Carton dimensions: 67 x 28 x 37cm