Moldex 2300 N95 2-Strap Particulate Respirators with Exhale Valve 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 Pack of 10