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Torrey i wasn’t going to say anything about switching horses as i knew that fall through with the buyer was probably still fresh on your mind but if it’s any consolation your mooney will out run an ovation once you get above 15k or so. You just need to either convince the wife to go on oxygen or let her goto sleep(haha just kidding) but really, the inogen 5 or 6 for that matter will give you and your wife enough O2 at 14k and i would bet even 16k if you pushed it. Just depends on how bad you want to go faster

From the guy that sells the 2 person canula for the inogen, said it’s 14,000ft for 2 because both people are sucking from the single port and the inogen is a breath demand not continuous flow of oxygen and thus if both people breathe at the same time you will get half of the oxygen or if one person breathes right behind the other person the inogen will not have had time to make another oxygen puff before that person breathes and they get no oxygen in that breath. Now the odds that you stay in that exact same rhythm is very low, at 14,000ft you have time to breathe a few breaths without oxgen supplement (FAA allows 30 mins at up to 14,000) before you get another breath that is ahead of the other person or far enough between to where the inogen does make an oxygen puff in time. The spec for inogen is something like 20 breaths per min which is breathing in every 3 seconds at that rate i would be hyperventilating and something is wrong if im breathing that fast so more that sufficient to keep a second person with oxygen even when they miss a shot of O2 when you average out over a minute. Now 3 people on one output port? Guess it depends how physically fit everyone is and how often they are taking breaths. Also would have to find a 3 way divider that evenly divided by 1/3 or someone will get less than the other 2 people.

I bought a used Inogen 3 in 2017 and have been pleased with it.

I just bought an Inogen one G3 for 425 used. I’ve used it for the last couple flights at 10.5-12000 and it easily keeps my oxygen levels in the mid to upper 90s. If you want to keep your CB status then keep an eye out for a used one for a good price. Many are 1200-1500 but it’s not unusual to see them around 500. So far I am liking it. I’m feeling less fatigued after cross country flights.

+1 vote for Inogen. Have now been using the G5 for about a month, and love it. At setting 4 at 17,500 ft my blood oxygen content never drops below 93. With large capacity battery, I am getting approx. 6 h of use at said setting. I am now using this thing at all altitudes above 10,000. At this time, the unit is hanging behind the co-pilot's seat, but I am thinking about a bracket for more or less permanent placement.

For the Inogen, Main Clinic Supply will sell to pilots without needing a prescription. You just send a picture of your pilot certificate.

I have the inogen 5 it produces 1.2L max compared to Aithre 1.0L the inogen is less than 5lbs with battery so if you took out the battery to be like the Aithre it would be less than half the weight. The inogen is designed to be carried so you could use it other than your airplane if needed wheee as that Aithre doesn’t look very portable. Inogen makes a new version 6 that has an app connection capability but the max output was closer to 1L so i went with the 5 because i could get a used one for half the price and it was small enough to fit behind the pax seat where i can keep an eye on it stats wise and increase or decrease the output level based on my o2 saturation needs. No need to work the machine any harder than what’s required. At 12.5k level 1 bumped my o2 1 point up level 2 got me 3 points up level 3 got me 5 points which got me to my same level at sea level.

I haven't used that one but the idea of an O2 concentrator is a great one, I use the Inogen G5 and it works well and is much easier than filling bottles.

Those Aithre products look awesome. Just not sure where I’d mount that thing. Looks like it needs to be adjusted by that knob while in flight for altitude, so I couldn’t have it mounted it the baggage area as I’m not Stretch Armstrong. I’m very interested in the Inogen, as my ox saturation isn’t great above 8k and I find myself using my O2 quite a lot, and I do a lot of XC at 10k-16k

No idea about the Aithre product, but many MSers are happy with the Inogen G5. Search for “oxygen concentrator”

Just for info purposes, the person I bought my Inogen G5 from is Jon Abbotts at Pure Medical www.puremedco.com 720.425.5454, 888.747.7590

Yes i was replying to pinecone as his mooney is like mine a 28v (24v system) and he said he is running his through his cigarette lighter so was curious if he had a plug that stepped down the voltage or was his inogen running fine on 28v.

Yea that’s 12v system the alternator charges at 13-14 volts, that’s how it charges the battery. make sure you have a 10amp breaker for the inogen g5 or it might be tripping the breaker.

Are you running your inogen g5 off your 28v system? I thought my cigarette lighter was 12v but surprisingly it was 28v and inogen says not to run it off 28v. Have you had any issues running it off 28v?

Consider an Inogen oxygen concentrator. These portable units are good into the high teens and preclude the expensive, awkward and arcane traditional oxygen tank systems. You will save huge amounts over time just avoiding the expensive O2 refills, even if you fly with a small backup tank. See recent Av.Consumer discussion.

I have had the Mountain High O2D2 units with the inline reducing regulator and had a couple of these for a number of years. I would recommend regularly changing the battery with new fresh batteries, and have new backup batteries, for two good reasons: 1) Obviously you don't want it to stop unexpectedly. 2) batteries leak after awhile. One of mine did and the small circuit board failed. It powered up and initially I felt the pulse O2 coming through the mask. I had just leveled off at FL023 and something didn't feel right plus the pulses weren't very often. I asked for lower and discovered that my o2d2 was operating intermittently. That flight turned out ok at a lower altitude. When I called Mountain High they said that the most common failure is battery leakage - that the batteries being made now don't hold up as well as batteries made a few years ago. I sent it in and had it refurbished and a new board installed. The documentation says not to use lithium batteries, which I never have, and to take the batteries out if you aren't using it for 30 days. Also MH says it needs to be sent back every few years to be recalibrated, collars and o-rings changed, etc. Repair invoice on the battery leak damage: https://www.dropbox.com/scl/fi/i3f8wccg3pkgxyjrek021/O2D2-repair.pdf?rlkey=2smq77y2fhqymc1jfmb5lpuxt&dl=0 Regular service invoice on both units: https://www.dropbox.com/scl/fi/32p1mq4jrei78jgvh5tp1/O2D2-regular-service.pdf?rlkey=bffsd7zwinn3e3y2z2i5m15e5&dl=0 I still own one of these, but since 2017 though, if I'm flying lower than FL180 I use an Inogen G3 oxygen generator with a cannula.

You may want to just pick up an Imogin G5 oxygen concentrator. No more filling. Reports are they are least good enough for 2 people at 14K and 1 person at 18K. Main Line Supply will sell them to you without a prescription if you send them a copy of your pilot certificate. Inogen G5 ON SALE - Free FedEx Delivery! (mainclinicsupply.com) There is also a guy that is on BT that sells them. Inogen G5 Pilot Package- 5 Year Warranty (puremedco.com) this place sells a setup to run two people off one concentrator and also can sell you a 24 to 12 volt converter.

I'm not promoting the Inogen but, since it has been mentioned above, here is another topic on MS about it: https://mooneyspace.com/topic/42345-inogen-g5-oxygen-generator-pirep And this one mentions the Inogen just tangentially: https://mooneyspace.com/topic/24138-oxygen-refills-robbed/page/3/

Just looked up the Inogen G5 found this spec on the first distributor that came up on google: https://www.directhomemedical.com/inogen-one-g5-portable-oxygen-concentrator-is-500.html?gad_source=1&gclid=CjwKCAjwh4-wBhB3EiwAeJsppOaEWn8m-GS8LqmljeJDCch6LY2bVMZxdt79K8ZJBKLoYJM9NQMxyhoCAvYQAvD_BwE OPERATING ALTITUDE Up to 10,000 Feet

When I started looking at prices to put a system in the plane I just kept coming back to the Inogen and that there are no refills to worry about or installation. I almost never buy the extended warranty on something, but theirs covers drops and also lifetime servicing so I paid for it. Send it back FedEx once a year for rods and filters to be replaced and any software updates. Initially I didn't think I should be concerned about dropping it, but then considered the times I have had stuff go airborne in the cabin, or hit my head, and figured I was one bad bump from it going airborne and slamming back down breaking it.

We bought an Inogen G5 and love it. I have a 12V outlet in the baggage area and just plug it in back there. With it plugged in we keep it at the highest setting, both of us on it and at 11,000' my sats are still at 98-99. Bought from Main Clinic Supply, all they need is a copy of your pilot license.

I tried an Inogen One G5 oxygen generator up to 17,500FT and the blood oxygen level never dropped below 96%. This was confirmed by two pulse oximeters. The generator has 6 output settings and I had to increase the output as I climbed. The highest setting (6) was needed at 17,500. Inogen told me that the generator would not work above 10,000 but the unit did not display any error messages. The generator weighs 6.5 lbs with the small (5hr) battery, the 12 volt cigarette lighter plug and cable. It has a shoulder strap that allowed me to hang it off the copilot seat between the pilot and copilot seats next to my portable oxygen cylinder. The best price I found was $2350 w/small (6hr) battery, free shipping and no tax, from: mymedicaloutlet.com

Looks like you are missing an EGT on Cylinder 4 and maybe Cylinder 2. Were you using a portable oxygen tank or a oxygen generator (Inogen)? When I first bought an M20K (231) in 1993 I thought nothing about going to 17500 with the factory O2 tank and no back up. Then after I got my instrument rating I thought nothing of going up to FL240 in the 231 and later FL250 in the Bravo - again with no backup. Now that I'm older and hopefully smarter I make sure I have a backup to my tank (Inogen which I use many times instead of the tank, and I carry a couple cans of Boost just in case). Everyone has a little different way of handling hypoxia. My IFR instructor had me take my mask off at FL240 and I kept it off for a few minutes and he had me do math problems and I wasn't having any difficulty and even a few minutes later it didn't seem like I was affected. He told me to get my mask back on and said that some people after showing no signs for awhile just black out and other people show more of a linear trend. The signs I was showing were the most dangerous since I might not see any sign of an O2 problem until it was critical.

Another good oxygen option (admittedly more $$) is the inogen g5 concentrator. It’s almost $2k but doesn’t need refills and works great for 1 or even 2 people (with splitter tubes) at NA altitudes.

Hi All, I'm looking for the manual that comes with the Inogen Aviator G5-1265. I can find both the technical and user manuals for the medical G5. But the G5 Aviator manuals cannot be found. If the Inogen G5 Aviator was tested to 18000 feet, wouldn't there be some record of this unit (manuals or tests) at the FAA website like other PMA parts and devices? Thanks, Brian