title: WPF study.
authors.forename: Ching-Tsen
authors.initials: CT
authors.lastname: Bien
authors.forename: Larry
authors.initials: L
authors.lastname: Janssen
authors.forename: Jeanne
authors.initials: J
authors.lastname: Bidwell
mesh_terms: D000395:Air Pollutants, Occupational / Q000032:analysis; D019544:Equipment Failure Analysis; D006801:Humans; D019570:Inhalation Exposure / Q000517:prevention & control*; D016273:Occupational Exposure / Q000517:prevention & control*; D052638:Particulate Matter / Q000032:analysis; D012134:Respiratory Protective Devices
chemical_list: D000395:Air Pollutants, Occupational; D052638:Particulate Matter