Volumeter attachment on Boyle circle absorber.
D000769:Anesthesia, Inhalation / Q000295:instrumentation*; D000777:Anesthetics; D005740:Gases; D006801:Humans; D012121:Respiration, Artificial / Q000295:instrumentation; D013147:Spirometry; D012122:Ventilators, Mechanical
D000777:Anesthetics; D005740:Gases