Very quite device It took me awhile to use it I wanted to get extra O2 tubes and something to clean them with. It is quieter than I thought it would be - I was using the nasal cannula wrong no instructions for that - I love the machine it helps me almost every night, so glad I have it - I would suggest a different hose connector though one that is tapered so it is easier to put the tubing on bless youall.

Great Portable at a Great Price I’ve had my Varon portable concentrator for a couple weeks now and I’m very pleased with it. I’ve borrowed a friend’s more expensive concentrator before and my Varon performs just as well and costs a lot less so I’m happy. The customer service is also very good. I really believe this company cares about its customers.

Excellent Product Hello, My wife has severe COPD. Having both the room and portable concentrators has been, both upstairs and downstairs, has been a necessity for several years now. The affordability and quality of Varon's units have helped with the quality of her remaining life. Our insurance did cover one unit with a $26.50 copay each month. I cancelled the insurance unit after using one of our concentrators and verifying its quality and reliability for over a year. This has saved me money over the years.

The unit died the light flashes the… The unit died the light flashes the drops off . Contacted the factory site they told me that unless I purchaseed the unit from their site they couldnt help me. i purchased the unit from ebay from a dealer I thought was autorized from Varon.

The product broke down after less than 6 months Most of these reviews have to be bought. I purchased a unit a little under 6 months ago. It started over heating to the point of it smelling like fire about 3 weeks ago. I have not been able to use it since. Their customer service is obviously in some Asian country and they do not care, they provide no solution and no help. They just say they will give me a 20% discount to buy another unit. Why is this company selling in the US a medical device and they will not provide any support? The way this company acts I doubt this even produces any oxygen at all.