title: Filtration efficiency of surgical face masks: the need for more meaningful standards.
authors.affiliation: Civil Engineering Department, University of Tennessee, Knoxville 37996.
authors.forename: W T
authors.initials: WT
authors.lastname: Davis
mesh_terms: D005374:Filtration / Q000295:instrumentation; D006801:Humans; D008397:Masks / Q000592:standards*