3M N95 Particulate Disposable Respirator is NIOSH approved N95 for providing at least 95% filtration efficiency against solid and liquid aerosols that do not contain oil. It features lightweight construction, adjustable nose clip for a custom fit and secure seal. It meets NIOSH 42 CFR 84 requirements and reduces the potential for eyewear fogging. It is applicable in bagging, grinding, sanding, sawing, sweeping, woodworking, foundries and other dusty applications. It is sold as 20 per box. Do not use for gases and vapors, including those present in paint spraying operations, oil aerosols, asbestos or sandblasting.