3M R95 Particulate Disposable Respirator is certified to provide at least 95% filter efficiency against solid and liquid particles including those containing oil. It features a adjustable nose clip that provides a custom fit and secure seal. It is lightweight and comfortable that includes no spare parts to clean and maintain. It meets NIOSH 42 CFR 84 requirement and reduces potential for eyewear fogging. It is applicable in glass etching, chemical, paper processing, brewing operations, aluminum smelting. 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.