I bought this system a few years ago when I was experiencing breathing problems. I only used it for about 6 months after which my doctor stated I did not need it any longer. I tested it about a year ago and found out the battery was dead so I purchased a brand new one directly from Inogen. Comes with the leather case, car/RV/boat charger (never used-still sealed), home charger, the concentrator, the new battery and the original instructions.

The output goes from 1-6 liters of oxygen per minute. The Inogen G5 has the highest oxygen output of any portable concentrator currently on the market. It is even approve by the FAA so you can use it while you fly.

The columns have not been changed for three years so they will need to be updated. It is suggested the columns be replaced every year. The cost of replacement is only about $120. This is a user changeable item which takes about 7 minutes to do.

I paid $3,400.00 for this set when new. I have never taken it out of the house.

It has less than 650 hours on it. I have read that these units can last on average between 5,000 to 10,000 hours so it has plenty of life left!

My price is ONLY $1,475.00. Payment must be made in CASH ONLY since I do not have any of the various cash apps. Sorry about that.

Feel free to call or text if you have questions and you are free to come by and try it out prior to purchase to make certain everything works like it should.