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Commercial Divers & Tech Divers what is your deep air limit?
I know where the PPO2 limits are and don't need any lectures on deep air. What I'm looking for is your personal comfort level as far as narcosis is concerned.
As a working diver having been exposed to high partial pressures of O2 for extended periods of time(i.e. mixed gas dives with surface decompression) I feel comfortable with my risk to the maximum (220fsw) for short exposure however, I find narcosis too unmanageable past 190fsw. Admittedly, if I dove more deep air I may find it more manageable but there's more productivity in being gassed.
Whats your take?
NOTE: This question was not an advocation of deep air diving and anyone who takes it as such didn't read the question. The tables, gas mixes, and other information associated with this type of diving are not widely published for a reason and I offered no such information in my post. If an individual chooses to ignore the recreational limits of their training without a complete and thorough understanding of the consequences then, thats their mistake not mine. The question was also addressed to divers who have that should have that understanding. While someone losing their life diving is always a sad event, the blame falls on their shoulders for not obtaining the training required. It's called personal responsibility.
4. Air dives shall not exceed 190 fsw (58 m) except that dives with bottom times of 30 minutes
or less; they may be conducted to depths of 220 fsw (67 m).
Section 4.28.3 Surface Supplied Diving
CONSENSUS STANDARDS
FOR
COMMERCIAL DIVING
AND
UNDERWATER OPERATIONS
A consensus of the ADCI and U.S Coast Guard who govern diving operations, not U.S.Navy.
By this standard SCUBA is limited to 130fsw.
1 Answer
- Lv2bWetLv 51 decade agoFavorite Answer
Most of the Tech divers I know believe that it's irresponsible to share that kind of information because it indirectly suggests to less experienced and less qualified divers that it's ok to "break the rules".
How would you feel if, a week from now, you heard on the news that someone seized and died due to O2 poisoning at 220fsw because he read on Yahoo Answers that it was ok?
Anyway... I believe the US Navy still enforces a 198fsw limit on air.
