title: Face mask scavenging system.
authors.forename: S M
authors.initials: SM
authors.lastname: Shafer
mesh_terms: D000766:Anesthesia, Dental / Q000295:instrumentation*; D002648:Child; D016292:Procedural Sedation / Q000295:instrumentation*; D004867:Equipment Design; D015920:Gas Scavengers; D006801:Humans; D009609:Nitrous Oxide
chemical_list: D009609:Nitrous Oxide