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