| Re: Semi Rebreather
You're not especially off track.
The volume of gas you're referring to is called "dead space", and is around 150ml in an average adult. The regulator contains about another 30 to 50 ml of gas that also is not involved in gas exchange.
In anaesthesia dead space affects the design of anaesthetic circuits in a number of ways; most of the time we are attempting to minimise it.
As to "recycling" the unutilised exhaled dead space gas, who knows?
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Andrew Bowie
Rebreather-friendly Buddy |