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> 
> I remember getting narcosis in an air chamber at 60FT.  When I switched 
> from 100% O2 (yes I was getting DCS treatment) to chamber air, I felt 
> like I had taken the quickest drink of my life.  The effect was small but 
> noticable.  I have noticed slight narcosis in the water as shallow as 80FT 
.......... 
>    Jody Svendsen
>    MiG Technologies
> 

Some time ago I heard a presentation by a professional diver at my University
on his experiences during a >400m (I think) Trimix chamber dive in Norway.
This dive was made in the early 1980:ies and at the time it was (an still is?)
the deepest trimix dive  made. They experinced serious symtoms when they
switched from trimix to heliox. Two of the three divers were conviced that
they had yellow birds inside the chamber after the switch.

Sten Meyer

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