3M N95 Particulate Disposable Respirator is certified to provide at least 95% efficiency at removing solid and liquid particles. It features adjustable straps, face seal and 3M Cool Flow exhalation valve that provide added comfort and durability. It is lightweight which includes cake resistant filter media and all filter design. It meets NIOSH 42 CFR 84 requirements and reduces potential for eyewear fogging. It is applicable in welding, brazing, soldering, torch cutting, metal pouring, grinding, sanding, sweeping, bagging, other dusty or hot operations. It is sold as 10 per box. Do not use for gases and vapors, including those present in paint spraying operations, oil aerosols, asbestos or sandblasting.