01396nkm 2200349 450 991071338830332120200324125249.0(CKB)5470000002499757(OCoLC)1145888234(EXLCZ)99547000000249975720200324d2014 ua iengurmn|||||||||stirdacontentcrdamediacrrdacarrierImportant steps for using NIOSH-approved N95 filtering facepiece respirators[Washington, D.C.] :Department of Health and Human Services, Centers for Disease Control and Prevention, National Institute for Occupational Safety and Health,[2014]1 online resource (1 image) some colorImportant steps for using National Institute for Occupational Safety and Health-approved N95 filtering facepiece respirators.Breathing apparatusSafety measuresIndustrial hygieneInstructional and educational works.lcgftBreathing apparatusSafety measures.Industrial hygiene.National Institute for Occupational Safety and Health,GPOGPOBOOK9910713388303321Important steps for using NIOSH-approved N95 filtering facepiece respirators3315580UNINA