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Updated: Aug 9, 2026

A Model to Simulate Clinically Relevant Hypoxia in Humans
Published on: December 22, 2016
An oxygen failure warning and patient protection system. The Howison Unit
Abstract:
A device is described which sounds an alarm to warn of oxygen supply failure. A the same time the nitrous oxide flow is cut off, and a reservoir in the device provides a continuing oxygen flow to the patient for about a minute. This results in increased inspired oxygen levels temporarily, reducing the risk to the patient while the oxygen failure is being corrected.
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