title: Waiting for OSHA's APFs (Assigned Protection Factors).
authors.forename: R
authors.initials: R
authors.lastname: Brooks
mesh_terms: D002379:Catalogs, Commercial as Topic; D006801:Humans; D016272:Occupational Health; D012134:Respiratory Protective Devices / Q000592:standards*; D014481:United States; D014489:United States Occupational Safety and Health Administration