Exhale valve lets workers breathe easy and stay cool. Dura-Mesh® shell resists collapsing in heat and humidity. Molded nose bridge seals easily without a metal noseband. Facepiece is naturally contoured for less pressure. Straps are securely attached so they don’t break at the seal. Softspun® lining for increased comfort and durability. Soft foam nose cushion for added comfort. NIOSH certified to have a filter efficiency of 95% or greater for non-oil based particulates.