Standard Pack = 1 piece(s). Made from a chemical-resistant elastomer material, this N-Series facepiece provides the comfort and protection workers need. The Hard-coated, scratch-resistant polycarbonate lens affords a field of vision of over 200deg, and the oral nasal cup reduces fogging and lessens dead air space. Unit meets ANSI Standards for impact and easily converts to PAPR or supplied air. NIOSH approved. Cartridges and filters sold separately. Medium/Large.