> Just want to ask some important questions:
>
> Have you ever thought about water temperatures of 4°C (39F)?
> Have ever thought about prices of Helium in Europe?
> Have you ever thought about common diving practices in Central Europe?
>
> As we all know is N-Narcosis not only depending on the ppN. The
> psychlogical
> effects of the different environments count at least as much as the ppN. A
> limit of 130 ft on Air could be way to much or more or less no problem. To
> limit the use of air to a max depth of 130 ft. is not our favorite limit.

I couldn't agree more. Narcosis involves a great deal more than just
nitrogen (despite recent apparent claims to the contrary). In my
circumstances and diving environment, I personally am comfortable breathing
air to a maximum depth of about 150 feet (as I said in the post that seems
to have garnered so much attention). All the senseless name-calling in the
world won't change my feeling on this, nor will it reduce my willingness to
provide an honest answer on the topic. But my feelings on this are moot in
this context, because aside from a few brief excursions to very shallow
depths, I haven't breathed air underwater for nearly 5 years, nor do I
anticipate any such need in the future, as all of my diving is done using a
closed-circuit rebreather.

Aloha,
Rich

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