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I have
an EDS system in my IV. "Friends of mine" have used it up to
FL250 with extreme comfort and excellent saturations. Typical saturations
at FL230 are 91-93%. I used a 40CF carbon fiber tank that I bought from an
ambulance outfitter (saving about $600 and a lot of weight) and have a built in
system that weighs minimal and lasts a very long time. I also refills it
from my own 250CF O2 tanks and it is so simple, inexpensive, and quick. I
have found that when the weather is lousy and bumpy I have landed with the O2 on
and not known it. The nasal dryness issue is a big deal on long high
altitude flights with a continuous flow system, and using a face mask makes for
a unpleasant experience. I have a face mask mike combo that I am willing
to sell to anyone who needs it.
While
I recognize the benefits of pressurization, the EDS makes the gap a whole lot
narrower.
Michael Smith
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