Rebreathers basically do 3 things:
1. Scrub off CO2
2. Inject O2 to replace what is used
3. Inject a dilutant gas if needed to replace volume
Am I correct? I know that dilutant and O2 are sometimes combined in
semi-closed circuit units. What range of "breathing gas" are modern
rebreathers capable of delivering with adjustments? Is it possible to go
from a bottom mix to a deco gas while using only rebreather controls? If
so, is it done?
John Norman
--
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