Our most popular valved disposable respirator, it is equipped with a Cool Flow Valve, which helps reduce heat build-up inside the respirator, helping to enhance your comfort during longer jobs. NIOSH-Approved N95 for at least 95 percent filtration efficiency against certain non-oil-based particles and aerosols. 3M COOL FLOW EXHALATION VALVE helps direct exhaled air downward and allows for easy breathing. UP TO 50% EASIER BREATHING. Compared to non-valved 3M 8200 Testing. ADVANCED FILTER MEDIA for easy breathing. ADJUSTABLE M-NOSECLIP helps provide a custom and secure seal. STRETCHABLE, BRAIDED HEADBANDS for comfort. LIGHTWEIGHT DESIGN for comfort. COMFORTABLE for long periods of wear. CONVENIENT, DISPOSABLE DESIGN. RECOMMENDED FOR relief from dusts and certain particles encountered during sanding projects (bare wood, non-lead painted surfaces, or drywall), grinding, sawing, sweeping, installation of fiberglass insulation. ALSO HELPS FILTER pollen, mold spores and dust particles encountered during outdoor activities such as gardening, cutting firewood, raking, and mowing. Contains no components made from natural rubber latex. Package contents: 10. DIY/Home Use: Use ONLY in NON-HARMFUL environments. Occupational/Hazardous Use: Use under a regulated government (e. g. OSHA) respiratory protection program. WARNING: Limitations apply; Misuse may result in sickness or death. See product packaging and insert or call in USA at 1-800-243-4630. In Canada, call 1-800-267-4414. Part of our Pro Series, the 8511 Respirator with Cool Flow Valve is designed with the pro in mind to help bring you protection and comfort.