Am I missing something here?
If you were designing a CCR, would you not want it to maintain something close to a normoxic mix regardless of depth, and definitely under PO2 of 0.5, so that there would be no O2 "clock" (not to mention CNS tox) issues?
If you were designing a rebreather, wouldn't you set it up so that it kept the PO2 at any given depth within the range of 0.21 - 0.50 at all times, or at least to the best of its ability did so?
What am I missing here, or am I misreading things when I see that many of the CCRs (like the Inspiration) tend to keep PO2s above 1.0 at depth...
If you were designing a CCR, would you not want it to maintain something close to a normoxic mix regardless of depth, and definitely under PO2 of 0.5, so that there would be no O2 "clock" (not to mention CNS tox) issues?
If you were designing a rebreather, wouldn't you set it up so that it kept the PO2 at any given depth within the range of 0.21 - 0.50 at all times, or at least to the best of its ability did so?
What am I missing here, or am I misreading things when I see that many of the CCRs (like the Inspiration) tend to keep PO2s above 1.0 at depth...