Great product with one tiny flaw Great product, took my Inogen home on a holiday and it was small and convenient enough to carry to the hotel. The service for setting up the machine was great and the sales team made sure that the international shipping went smooth (purchased in Canada) and in a timely manner. Only one improvement could be made: the air exit nozzle points upwards, so with gravity the air hose can fold over and obsruct air flow. My previous oxygen generator has the nozzle come off horizontally thanks to a 90 degree bend.

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

I don't have to be weighted down with… I don't have to be weighted down with heavy tanks anymore and the battery operated package is great. I am concerned about getting in touch with someone in an emergency or need to know situation. It takes 25 minutes or more to reach someone. I am so far, a very satisfied customer.

THE TIGHTENING PIECE BEHIND THE HEAD… THE TIGHTENING PIECE BEHIND HE HEAD KEEPS LOOSENING AND NEED TO BE TIGHTENED. I'M THE HUSBAND AND IF I'M THERE, I CAN TIGHTEN IT. OTHERWISE, SHE'S STUCK. IS THERE A CURE? ALAN L

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.