High-efficiency respirator protects you from metal and chemical fumes as well as from common airborne particles. Dura-Mesh? collapse-, heat- and flame-resistant shell and Softspun? liner strike the perfect balance between space-age performance and old-fashioned comfort. Molded bridge and foam nose seal provide a secure, pinch-free fit. Exhalation valve minimizes carbon dioxide and moisture buildup. Adjustable straps. PVC-free. Respirator Type: Half-Face Mask; Rating: N99; Resistance: Particulate Aerosols Free of Oil; Solids; Material(s): Foam.