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May I respectfully suggest that there is quite a difference between the ppO2
in your tank and that in your face.
Try gargling with 1,1,1 Trichloroethane before diving, it may hep your
situation.
> There I was, doing my deco at Ginnie the other night, when my mask began
> to leak - again - and I realized that I had forgotten to shave before
> the dive. And then luckily I started thinking about the O2 cleaning
> debate before I cleared my mask.....
>
> As the water level inside my mask rose I thought about the fact that I
> was breathing 100% O2 and that my exhaled breath was certainly pretty
> close to 100% O2 as well.
>
> As the water level continued to rise I went on to think that I would be
> displacing the water in the mask with my breath and therefore filling my
> mask with nearly 100% O2!
>
> As the water level passed the halfway mark inside my mask I realized
> that I had forgotten to wear my O2 clean mask - you know, the one with
> the Viton skirt. What was I going to do? I had almost 30 minutes of
> deco left. Did I want to suffer through a face full of water for 30
> minutes or risk blowing my head off by filling my mask with O2?!?
>
> Then the mask was almost full of water as I realized that I had
> forgotten the covers for my teeth. You know, the caps to cover my metal
> fillings so that there is no chance of a spark inside my mouth with the
> O2 present (Lucky for me I don't have braces or O2 deco would be out of
> the question!). Well, I had survived so far with those fillings exposed
> so I decided to be a daredevil, to take a real chance, and clear my
> mask.....
>
> As I started to exhale through my nose I saw a strange flash of light!
> Did I just explode? Did my mask go into meltdown?!? Nope. The water
> gurgled harmlessly from the mask as I found my light shining directly up
> into my face from where it was clipped to my harness. I had stared
> certain death in the face once more and survived. Such is the life of a
> cave diver..
>
> The moral of the story? Well, more of a question than a moral... For
> all of you that are really anal about O2 cleaning - what do you do about
> your masks since they would be exposed to nearly the same O2 environment
> as the inside of your tank or your deco regs? Hadn't thought about that
> one? Gonna' call TUSA and demand that they start producing an O2
> compatible mask with a Viton skirt? Gonna' visit the dentist and have
> all your fillings changed to a non-metallic type? I really am curious.
> Please advise the list as to how we should handle this potential hazard.
>
> TIA
>
> -Erik
> --
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============================================================================
==
,-_|\ Guy Wittig
/ \
\_,-\_+ <- last seen here
v
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