McKesson Model G
The Model G was equipped with a re-breathing attachment, which combined the ether vapor with the patient's exhaled carbon dioxide using a calibrated scale. It also had an emergency oxygen valve to bypass the anesthetic gas and deliver pure oxygen for quick resuscitation. The apparatus could deliver ether vapor, and the gases oxygen and nitrous oxide. By 1925, the Model G could also deliver ethylene gas, and had an optional electric ether warmer. The model G continued in production through 1930, when it was superseded by the McKesson Nargraf machine.
Catalog Record: McKesson Model G Contact firstname.lastname@example.org for catalog record.