Exhaust valve reduces build up of heat and humidity.Uniquely designed to help provide comfortable, reliable user protection. It is ideally suited for work settings that involve heat, humidity, or long periods of wear. Commonly used during stripping/sanding of bottom paints, epoxies, wood, gelcoat and fiberglass.Key FeaturesProvides the same level of protection as the 8210 plus a patented exhalation valveCommonly used during stripping/sanding of bottom paints, epoxies, wood, gelcoat and fiberglassAdjustable M-noseclip reduces potential for eyewear fogging3M Cool Flow Exhalation Valve reduces heat build-up inside the respiratorHeadband two-strap design with dual point attachment helps provide a secure sealApplicationPrimary Usage: Removes solid/liquid particles.Exhalation valve: reduces heat/humidity buildupApprovals: NIOSH 42 CFR 84 (Not oil proof)Securing Device: Two braided straps