Disposable particulate respirator designed to help provide reliable respiratory protection of at least 95% filtration efficiency against certain non-oil based particles. Carbon filter media helps reduce exposure to ozone and nuisance levels of organic vapors. Features cake-resistant filter media with specifically designed filter layers for welding applications. An adjustable noseclip helps provide a custom, secure seal and reduced potential for eyewear fogging. Fully adjustable headstraps help provide a secure seal, and the respirator is compatible with a variety of protective eyewear and hearing protection. The proprietary 3M Cool Flow valve is designed to release hot, humid exhaled breath quickly, helping to prevent an unpleasant buildup of heat inside the facepiece and to increase comfort for respirator wearers. Suggested applications: welding , torch cutting, brazing, soldering, and metal pouring, or when working with stainless, galvanized or aluminum.