Before getting the Inogen we were… Before getting the Inogen we were always worried the portable oxygen machine that we had would quit working while we away from home, which it did several times. Not only does the Inogen work really well, the batteries last long and we are starting to relax when we have to go places further from home. We haven't had any problems with it. Just wish we would have gotten one sooner

This was the best company I have ever… This was the best company I have ever dealt with! My previous oxygen provider ignored three prescriptions for a portable oxygen concentrator from two pulmonologists. The Inogen team handled all of the insurance requirements. They are now my provider for all oxygen needs. The portable unit is simple and functions perfectly for my needs. Thank you to everyone at Inogen for the great experience.

G5 heavier than advertised G5 heavier than advertised. Given no instructions on connecting tubing for use throughout house for larger concentrator

Staff was very knowledgeable and… Staff was very knowledgeable and answered all my questions and concerns.

My disappointment with Inogen… My disappointment with Inogen continues. I can add another unit failure to my experience. I been thru a half dozen G5's that have failed and had to be replaced. The authorized seller I've bought from has been great and understanding. Every failure has been after less than 100 hours of use. I even had a brand new unit fail after only 4 hours of use. I don't trust these POC's. If you are considering purchasing an Imogen product I would recommend adding the cost of a lifetime warranty (about $500) to the cost of ownership. The one thing I can count on is the unit failing. Soon I will be past warranty and stuck with a $3000 paper weight and needing a POC. I would not recommend Inogen concentrators but if you do buy, get from a authorized dealer and not direct from Inogen. ------- I see I received the standard canned response from Inogen. Unless you would consider supplying a unit that will not fail or give me a free lifetime warranty, I see no reason to talk. Every time I return a unit, it costs me $89 to have a replacement shipped.