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Date: Mon, 14 Jan 2013 17:37:50 -0500
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From: vtailjeff@aol.com
Subject: Re: [LML] Re: LML roots [O2]
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Fit, leaks

Sent from my iPad

On Jan 14, 2013, at 7:52 AM, Colyn Case <colyncase@earthlink.net> wrote:

> Jeff, say more about why you need a "hard" mask?  is that as opposed to a "=
soft" mask?
>=20
> On Jan 13, 2013, at 5:51 PM, Craig Jimenez wrote:
>=20
>>> or cannula- should they be worn around your neck and plugged in just in
>>> case? Flow adjustments-
>=20
> 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.
>=20
> 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.
>=20
> Craig
>=20
>=20
>=20
>=20
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>=20
>=20
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