Combines P-Series versatility with exceptional comfort and fit. Excellent choice for those who have work environments that may contain certain oil and non-oil based particles. Features the 3MTM Cool FlowTM Exhalation Valve, comfortable faceseal (8271) and M-noseclip to help provide a custom fit and secure seal. Workplace applications include grinding, sanding, sweeping, bagging, machining and other dusty/oily operations.*3MTM recommended for relief against nuisance level acid gas or organic vapors. Nuisance levels are less than OSHA PEL or applicable government occupational exposure limits, whichever is lower.