I purchased a concentrator I purchased a concentrator. It stopped working after 35 days. I contacted the company and they are only honoring a 30 day warrantee although they said it had a 1 year guarantee when I purchased it. One place on the web site states 30 days and another states 1 year. I may have to return it to the manufacturer in China, but right now Oxygensolve is giving zero support

I recently purchased the NT-05 portable… I recently purchased the NT-05 portable oxygen concentrator and it's been working well for me. Although I had an issue with the charger, the company sent a replacement promptly. The battery lasts for about 2 hours, and their customer service is exceptional.

Recieved Oxygen concentrator 7 days… Recieved Oxygen concentrator 7 days from order. Machine operates great. I have used it for nearly 48 hours without incident. Remote control unit isn't operating but have not yet contacted company. Pleased with concentrator plan on using on vacation travel, it's about 1/3 the size and the weight of my medical supplied unit.

Better breathing on the go with Varon 3L/NT-05 We received our Varon 3L/NT-05. This little machine is exactly as described. My husband had used a different one in the past, but it was so heavy he had trouble even walking with it. Now with our Varon he has a much easier time carrying the unit. I did notice that the carry case had a defect on the velcro flap. I contacted the company and their response was very fast. They have already shipped a replacement case. So glad we discovered this company. Now we can go on our trip and my hubby can climb the hills with oxygen pulsing into him. Highly recommend the Varon 3L CFOP!

I purchased one of their units and O boy what a ripoff I purchased one of their units, after I received it I tried it and realized it was not going to work for me. Since the unit had a 30 day return policy for a full refund, I started trying to call their listed customer service number and found out later in an email that their phone number wasn't working! Then after 9 emails they finally gave me a Rma number and the shipping address that was in China I attached a label and took to UPS where I was told it would cost 400 to 500 dollars to ship it to China which exceeded the purchase price of 351.10. So it's a ripoff if you ever need to return it for credit or service!! What a rip-off!!! BUYERS BEWARE !!