title: PPE-volution.
authors.forename: Marc
authors.initials: M
authors.lastname: Barrera
mesh_terms: D000058:Accidental Falls / Q000517:prevention & control; D000846:Anniversaries and Special Events; D002910:Chronology as Topic; D004430:Ear Protective Devices / Q000266:history; D006260:Head Protective Devices / Q000266:history; D049673:History, 20th Century; D049674:History, 21st Century; D006801:Humans; D016272:Occupational Health / Q000266:history* / Q000331:legislation & jurisprudence; D010330:Patents as Topic; D010506:Periodicals as Topic / Q000266:history; D011482:Protective Devices / Q000266:history* / Q000592:standards; D012134:Respiratory Protective Devices / Q000266:history; D014481:United States