title: Fit testing under the new 42 CFR Part 84.
authors.forename: W
authors.initials: W
authors.lastname: Newcomb
mesh_terms: D004867:Equipment Design; D004869:Equipment Safety; D006801:Humans; D009314:National Institute for Occupational Safety and Health, U.S.; D012134:Respiratory Protective Devices / Q000592:standards*; D014481:United States