Very surprised to see positive reviews… Very surprised to see positive reviews of a company I know to be deceptive. Bait and switch is how I’d characterize them. Their advertising goes on and on about 90% oxygen concentration but their entry level is only 30% concentration which is not something they tout prior to the sale. Be very cautious when dealing with these folks, they will ship you something from China which you will never be able to return and they will offer you a small credit to shut you up.

Response time for inquiries was quick… Response time for inquiries was quick and thorough. We did initially get a defective concentrator. The process for return and replacement was easy. As a retired corporate QA person, things do go wrong with products. It is the response to the issue that defines trust. Varon responded well.

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.

Fast and fair company to deal with. The unit arrived very fast. It worked beautifully except I couldn't get it to work off the battery. It didn't seem to charge. I reached out to the company and they sent a replacement battery right away. It works great now and I appreciate the light weight machine. I went out with it today and everything worked just fine. I would recommend this to anyone in need.

Everything like ads The VT-1 is everything advertised and specified on the website. I have tested both flow and O2 concentration percentage and they match the specifications. I did notice power consumption appeared to be only 50 watts when using 12-14v battery/car which is excellent and better than the 75 watts specified. I am thinking the 75watts is with the 120v AC power supply and you get some inefficiencies with the converter/adapter. The unit does live up to the 58db sound level specified, about the level of normal speech.