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Inogen Portable Oxygen Concentrators

4.55 Stars (118 Reviews)
Updated: January 19, 2023
By: Jonathan Trout
Jonathan Trout
Content Manager
Jonathan is a former product and content manager for Retirement Living. His background spans sales/marketing, finance, and telecommunications. Jonathan’s expertise in consumer wellness and research-backed data stories helped educate seniors on financial planning, retirement, and community resources. Jonathan graduated from Oklahoma State University with a B.S. in Environmental Sociology.
Content Manager
Edited by: Lauren Hamer
Lauren Hamer
Lauren is the editor for Retirement Living focused on discussing current senior-related issues, including retirement planning, consumer protection, and health and wellness. With six years of finance and career journalism experience, Lauren has edited personal finance content for Credible, Angi, Slickdeals, Jobs for the Future, and more.

Inogen has been providing small, light and tankless portable oxygen concentrators to consumers for the past 15 years. The company was founded in 2001 to give those on oxygen therapy greater freedom and independence.

Editorial Breakdown

Price 4.8 Stars
Flow Settings 4.8 Stars
Battery Life 4.3 Stars
Customer Service 4.5 Stars

Overall Rating 4.6 Stars

Bottom Line

Inogen designs and sells oxygen concentrators including two models of portable oxygen concentrators – G4 and G3 systems – and one in-home oxygen concentrator. All Inogen oxygen concentrators meet FAA standards.

118 Inogen Reviews

Write Review
5 Stars

May 21 2021 7:14AM

At first I could not get through to customer service. Posted online and a rep called me in a few days. All questions answered. Love my machine. Yes expensive and all accessories are too but have to have them if you want to be mobile. My Doc said Kaiser will reimburse me for cost. Time will tell.

Jo R.
CA Fairfield, CA
5 Stars

May 21 2021 2:56AM

It's so very nice not to be hauling tanks around while I'm watering my flowers. The ground is uneven and it's hard to get the tanks upright. My Inogen unit on the other hand hangs fairly easily around my neck and is no problem at all.

Lenora,Marie M.
Layton, UT
5 Stars

May 21 2021 1:57AM

Great company to do business with. Polite, very helpful, and extremely well versed on the various INOGEN products that they feature. We got the INOGEN-ONE-G5. I had the fortune to deal with Brianna ** who did a truly superb job. Thanks!

4 Stars

May 21 2021 12:58AM

The young man who helped me was knowledgeable and personable. I think he got me the best deal available at the time. I am probably going to need continuous rather than pulse oxygen soon. Is inogen looking into making this happen?

Judy M.
Troy, NY
5 Stars

May 20 2021 10:21PM

Inogen One G5 has been the perfect companion for me. It's so easy to use, reliable and travels well. The additional battery ensures I always will have a battery charge and I have the charger for the car for long trips. Inogen One offers freedom to live life I did before my breathing was compromised.

Janelle H.
Laughlin, NV
5 Stars

May 20 2021 10:10PM

Great company and product!! Has given me freedom to attend all the events and go to church on Sunday. My caregiver can take me for rides to the beach and we can go on adventures. Thank you for giving me quality to my golden years.

Alice M.
Bradenton, FL
3 Stars

May 20 2021 9:49PM

Unfortunately, I can't hook up a distilled water aeration bottle to my unit because it pulsates rather than continuous O2 supply. I wake up very dry every day. I should have kept the home unit and just used the Inogen on-the-go.

Christopher S.
Maple Shade, NJ
2 Stars

May 20 2021 8:41PM

Nothing but challenges. Purchased for my Mother. I thought this was the Rolls Royce of machines. Have had four replacements in a 6 month period!!! Not a happy consumer. Seems to be working now, but what if it fails again when she is out and about?

Gregg H.
Kihei, HI
1 Star

May 20 2021 8:05PM

It doesn't last very long even with the large battery. I've had to send 2 back that did not work. So I'm not incline to recommend to anyone or use. I have spoken to two different people. One was professional and one was rude.

Diane J.
West Covina, CA
4 Stars

May 20 2021 7:51PM

Made it possible to golf easier. The battery last long enough as to get around in. Presently on #2 LPM, at this time enjoying the freedom.

Only issue I wish as I was preparing the cost on what to invest, I wish they would have told me that the unit does not come with an external charger. And answer my questions about the batteries. Do they have to be drained before you recharge?