Small, relatively cheap oxygen concentrators

Like anything you get what you you pay for within limits. — different concentrators have different pro’s and con’s.

You could consider buying used high end concentrator from reputable source.
Also one wants to have them serviced once a year to see if they are working properly and delivering the O2, and also to change filters etc

Thanks. I got two cheapies from China. You get what you pay for.

Unfortunately that's why they are cheap! The will not meet your needs. The VA /Medicare should be able to provide you with a portable concentrator with more liter power!

Medicare will allow you to rent a portable oxygen concentrator, the trick is finding an oxygen supplier actually has one in stock that isn’t a piece of crap.

My Medicare provider went to bat for me and called all over Ohio trying to find a Rove 6. Oxygen suppliers would tell them that they had an equivalent product, but when I actually talked to them, What they were offering was nowhere near what I needed.

What is your diagnosis? Is it alpha one antitrypsin deficiency or a rare disorder. If so, you need to apply for assistance from Accessia. They are an awesome assistance program that will pay for portable oxygen concentrators And I mean good ones.
I am getting ready to order an Imogen Rove 6.
Wt: 5.4lbs (extended battery)
Pulse-Dose Settings: 1 - 6
Height: 8.14”
Length: 7.18”
Width: 3.27”
Exteded Batt: 12.75 hrs (
Sound: 37 dBA (Set 1)

Inogen Hotline: 1-844-887-1287
Inogen Claims that they will help you find a portable oxygen concentrator to rent. But the only one that would really serve your needs would be the Rove 6 so be adamant that that is what you want.

Many thanks. I can get one through the VA. (I'm disabled.)

Important to understand...pulse flow portable oximeters may have setting up to 6 liters per minute...but THEY DO NOT DELIVER THAT ...pulse rate is not the same as continuous flow. Mayo rehabilitation pointed that out to me. Look at capacity of the portable.
For night sleep I have a stable oxygen concentrator that delivers continuous flow not a portable one . For higher portable concentrator it is necesssary to go with bigger one, tank I believe.
I have a portable Inogen Rov 6 - latest model, they stopped making the One 5. I bought it but my Medicare provider gave me a Inogen One 5 under Medicare. They are very very similiar and same batteries work on both. My prescription is for 2 lm but I set my Inogen at 4-6 when exercising to keep my O2 at safe level.

I have an Inogen One 5. I'm supposed to get 3ml at night, and I learned the hard way that buying a quiet, cheapo-concentrator by nightstand is not the way to do it. Thanks.

I have a 2 liter O2 prescription both for exertion and for sleep. My Medicare provider gave me both a stable concentrator for night sleep and an Inogen One 5 for exertion/exercise.
I bought the Inogen Rov 6 outright. I like my portable Inogens, but they are not for home use unless my electricity is out and I can't use my stable continuous flow concentrator. I have to set the Inogens at 4-6 for my 2 liter prescription. And that consumes the battery quickly....and those batteries are expensive!
The continuous flow is set at 2 lites per my prescription and runs on electricity
If my O2 needs increase I think I will need a different portable, one that has continuous flow.
Unfortunately Mayo only tests and prescribes with continuous flow so one does not know how well pulse dose works and if the portable pulse dose is doing the job.
As the Inogen Internet site states:
Rov 6: 6 Pulse-Dose settings
Home Inogen: 5 liters per minute, continuous flow
Those are two different things. The Rov 6 manual says "The settings of this device may not correspond with the setting for devices that provide continuous flow oxygen.

Thanks. I'm looking for something that can provide 3 or 4 lm and be quiet enough for me (and my wife) to sleep. Is the Inogen Rove 6 relatively quiet at this level? I have an Inogen 5 which barely passes.