Comment Re:Not SCUBA (Score 4, Informative) 473
This is completely wrong. Pure O2 is perfectly safe at 1 ata (ATmospheres Absolute). It is used in many medical circumstances (hard breathing, possible diving accidents, etc.) The air we breathe is 21% O2, so a claim that 4% more will make you high is bunk.
Pure O2 at 2 ata (aka, 33 feet under sea water) is deadly. You will enjoy convulsions until you drown. This is why when we are using special breathing gases (such as Nitrox, which has a higher percentage of oxygen), we keep the ppO2 under 1.6, which limits our maximum operating depth (MOD).
Pure O2 at 2 ata (aka, 33 feet under sea water) is deadly. You will enjoy convulsions until you drown. This is why when we are using special breathing gases (such as Nitrox, which has a higher percentage of oxygen), we keep the ppO2 under 1.6, which limits our maximum operating depth (MOD).
