Suggested applications include welding, brazing, soldering, torch cutting, and metal pouring, as well as grinding, sanding, sweeping, bagging and other dusty/hot operations. Features the 3M Cool Flow Exhalation Valve. Flame-resistant protective layers, not a substitute for a faceshield. NIOSH Approved. *3M recommended for ozone up to 10x PEL or applicable government occupational exposure limits, whichever is lower. Not NIOSH approved for use against ozone. **3M recommended for relief against nuisance levels of organic vapors. Nuisance level refers to concentrations less than the OSHA PEL or applicable government occupational exposure limits, whichever is lower.