title: Questioning APR cartridge use.
authors.forename: D G
authors.initials: DG
authors.lastname: Sarvadi
authors.forename: S M
authors.initials: SM
authors.lastname: Corbitt
mesh_terms: D006801:Humans; D009314:National Institute for Occupational Safety and Health, U.S.; D012134:Respiratory Protective Devices / Q000592:standards*; D014481:United States; D014489:United States Occupational Safety and Health Administration