2300 N95 2 Strap Particulate Respirator with Exhale Valve, Disposable, Half Face, Small ORS NASCO Perfectly mated laser heat treated cutter Knife Perfectly mated laser heat treated cutter Knife and anvil style cutting edge to ensure perfect mating and superior cutting edge life Constructed of high carbon C1080 steel for superior performance Steel Applications Finishing 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