title: A comparison of surgical masks, surgical N95 respirators, and industrial N95 respirators.
authors.forename: Jeffrey
authors.initials: J
authors.lastname: Birkner
mesh_terms: D004867:Equipment Design; D006801:Humans; D008397:Masks; D012134:Respiratory Protective Devices; D013514:Surgical Procedures, Operative; D014481:United States; D014486:United States Food and Drug Administration