Update. The green Tiga-Med cannulas give out a almondish-chemical smell which I don’t mind, but that some passengers hate. Also, the tubing length is a bit much for my installation, but the connector seems to be firmly glued/welded in place, so not easy to cut the tubing to shorten it, and place the connector again. Especially when connected to my “Y shaped tubing” to share one machine (two people), the total length is unmanageable.
Peter wrote:
BTW the cannula tube internal diameter doesn’t matter if you are using an oxygen generator, or any other constant gas flow source, because there is no inhalation detection involved. The gas just flows continuously.
Negative. The Inogens work with inhalation detection, and inject a “puff” of oxygen on inhale. The volume of the “puff” is varied depending on the inhalation frequency, so that the oxygen per minute is constant.
Oxygen generator posts moved to the oxygen generator thread.
BTW the cannula tube internal diameter doesn’t matter if you are using an oxygen generator, or any other constant gas flow source, because there is no inhalation detection involved. The gas just flows continuously.
For someone who flies a lot on O2 and wants to still “look cool”, this could be of interest:
O2 feed integrated into glasses
The link to the Marienfield web site gives a list of optician partners around Europe. Certainly not a product for cheapskates, though.
Doesn’t look like it has an oxymizer built in, so likely an O2 hog.
I tried my “cheap cannulas with long connecting tube” on the ground with my oxygen concentrator (Inogen), and they seem to work well. The connector on the cannula works directly on the machine, no adaptation needed like with the MH O2D2.
Peter wrote:
I’ve been to FL210, which in the summer is more than likely 22000ft or so,
It’s the pressure altitude that matters. not the density altitude. (For the lungs anyway.)
About the EDM – Emergency Descent (not Descend, sorry) Mode: Automatic descent begins after one minute of no response initially to 14,000 feet for 4 minutes, then to 12,500 feet thereafter.
a) The pilot-in-command shall ensure that all flight crew members engaged in performing duties essential to the safe operation of an aircraft in flight use supplemental oxygen continuously whenever he/she determines that at the altitude of the intended flight the lack of oxygen might result in impairment of the faculties of crew members, and shall ensure that supplemental oxygen is available to passengers when lack of oxygen might harmfully affect passengers.
b) In any other case when the pilot-in-command cannot determine how the lack of oxygen might affect all occupants on board, he/she shall ensure that:
(1) all crew members engaged in performing duties essential to the safe operation of an aircraft in flight use supplemental oxygen for any period in excess of 30 minutes when the pressure altitude in the passenger compartment will be between 10 000 ft and 13 000ft; and
(2) all occupants use supplemental oxygen for any period that the pressure altitude in the passenger compartment will be above 13 000 ft
So, provided that you take responsibility for checking your own and your pax’ welfare (using, presumably, pulse oximetry) you are on your own.
Interesting. Did not know that the face mask is not explicitly required under EASA rules above 18000 ft.
