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Date: Sun, 13 Jan 2013 17:51:41 -0500
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Subject: Re: [LML] Re: LML roots [O2]
From: "Craig Jimenez" <cj@AwlBiz.com>
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>>or cannula- should they be worn around your neck and plugged in just in
>>case? Flow adjustments-

IVP folks have nice cabin altitudes under normal operation, but in the
Meridians and P-Barons I fly, cabin altitudes tend to be in the 8-10,000'
range in cruise.  I've been using a Mountain High pulse demand system with
cannula to stay a little smarter.  I test it before flight and then set it
to provide O2 above cabin alts of 5000'.  A nice benefit is that it will
automatically adjust O2 flow to compensate for cabin altitude, so in the
event of depressurization or failure to pressurize, I have appropriate O2
on and flowing.

Note that a mask must be available above 18,000' (it is possible to forget
to breath through the nose and I guess there needed to be an easily
remembered cut-off altitude for cannulas).  In my case, the mask is part
of the installed (but small and expensive to refill) system.

Craig