title: PAPRs: primary or secondary protection options.
authors.affiliation: ILC Dover, Frederica, Del.,, USA. alan.george@ilcdover.com
authors.forename: Alan E
authors.initials: AE
authors.lastname: George
mesh_terms: D000395:Air Pollutants, Occupational; D006804:Ergonomics; D006801:Humans; D012134:Respiratory Protective Devices / Q000592:standards*; D014481:United States; D014489:United States Occupational Safety and Health Administration
chemical_list: D000395:Air Pollutants, Occupational