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Greg Ryan
> 
> I recently got a copy of the DCIEM Diving Manual which included an in-water
> O2 decompression table (Table 2).  
> 
> I was surprised to find that their O2 deco procedures were based on using O2 
> at 9m (30ft) only.  The table gives air stop up to 9m, at which stage you go 
> on to O2 and remain there for the full O2 deco schedule.  Five minute air
> breaks (not counted as deco) can be taken each 30 minutes.

Take a look further back, there is a "shallow O2 deco table" for using
O2 only at 20fsw and above.

David Story                        NAUI AI Z9588, PADI DM 43922, EMT
story@be*.wp*.sg*.co*		  Every dive is a decompression dive.

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