miketsp
Contributor
The Kraken:Find a TDI course, they don't require the dives.
the K
Given that some individuals are consistently oxygen intolerant in hyperbaric situations, I for one felt more reassured doing my first dives at 1.4 exposure with an instructor.
The statistic I saw was about 1.9% of navy divers failing their OTT (Oxygen tolerance Test). Although this statistic is probably a little outdated. I would be curious if anybody has a newer figure.
Edit: well, before I get flamed, I just found an old post by Dr Deco from 2001 which reads:
We are looking at the old concept of the Oxygen Tolerance Test. This was abandoned first in the Royal Navy and then in the US Navy because the data was of little value. The toxic response to oxygen is just too variable from day to day in an individual.
Found the thread:
http://www.scubaboard.com/showthread.php?t=4252
Of course I didn't know this when I did my Nitrox checkout.