flow-over vaporizer

flow-o·ver va·por·iz·er

a device for vaporization of a liquid anesthetic by causing gases to pass over the anesthetic or over material saturated with the anesthetic.
References in periodicals archive ?
In the best of circumstances, one will be faced with an anesthesia machine of similar design to that used at home, including an oxygen source with a variable bypass, flow-over vaporizer.
In most circumstances, the basic anesthesia machine includes an oxygen source and, at best, modern, variable bypass, flow-over vaporizers.
As mentioned earlier, in the best circumstances these will include standard, variable bypass, flow-over vaporizers.
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