title: The Brown nasal mask. A new scavenging mask for dental anaesthesia.
mesh_terms: D000293:Adolescent; D000397:Air Pollution / Q000517:prevention & control; D000766:Anesthesia, Dental / Q000295:instrumentation*; D000769:Anesthesia, Inhalation / Q000295:instrumentation*; D002648:Child; D002675:Child, Preschool; D003748:Dental Equipment; D006801:Humans; D008397:Masks