Conforms to CE EN149 2001 FFP1D standards. With exhalation valve for breathing easier and reduce hot air build up, also loaded with high performance active carbon pre-filter against nuisance organic vapor below OEL. For protection against non-toxic solid and liquid aerosols (e.g. oil-mists) in concentrations up to 4,5 x MAC/ OEL/ TLV 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, underground civil engineering and woodworking, etc.