Conforms to EN149 2001 FFP1 standards.With collapse resistant double shell construction made to withstand hot and humid conditions, fringe seal avoids open layer around the edges, latex-free synthetic rubber headstrap, contour design ensures the compatibility of glasses /goggles and reduces fogging, soft close-cell nose foam and adjustable nosepiece ensures custom shape and increase the worker comfort and acceptance. With exhalation valve for breathing easier and reduce hot air build up . For protection against non-toxic harmful soild and liquid in concentrations up to 4 x OEL or 4 x APF, such as calcium carbonate, china clay, cement, cellulose, sulfur, cotton, flour, carbon, ferrous metals, vegetable oils and soft wood. Recommended applications for textile industry, craft work , iron and steel industry, mining, undergruound civil engineering and woodworking, etc