In a decompression chamber you breathe pure oxygen and it all but eliminates nitrogen from your system. So, I have to agree with everyone else. Oxygen, in certain circumstances bonds quicker with hemoglobin and forces oxygen saturation thereby forcing nitrogen out of the system.
Also, you must consider that the air we breathe consists of:
78.084% Nitrogen
20.946% Oxygen
.033% Carbon Dioxide
.0934 Argon
The higher % of oxygen we take in obviously means that there is more oxygen to use in one breath. Thereby creating a longer breath hold. Your body still churns out CO2 at the same rate, but your oxygen content is higher than 21%. You must also consider that when we breathe air we only use 5 to 6% of that 21% anyway.
Tmckee
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-Theodore Roosevelt-
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