3M Professional Multi-purpose Respirator is used f For workplace/occupational applications onlyProvides at least 99.97% filtration efficiency against solid and liquid aerosols including oilsExhalation valve cover for reduced fogging of eye protectionExhalation valve cover for reduced fogging of eye protectionBalanced design for more comfortSweptback cartridges for improved visibilityNIOSH approved-OV/AG/P100HEPA