I bought the 3-liter continuous flow… I bought the 3-liter continuous flow machine less than a month ago, and so far, it's been great. It was well-packaged and is functioning perfectly.

The VT-1 fulfills all the claims and… The VT-1 fulfills all the claims and details mentioned on the website. I have conducted tests on both airflow and oxygen concentration percentage, and they align with the stated specifications. Interestingly, I observed that the power consumption is only 50 watts when utilizing a 12-14v battery/car, which is outstanding and surpasses the specified 75 watts. It seems that the 75 watts is in reference to the 120v AC power supply, and there might be some inefficiencies when using a converter/adapter. Furthermore, the unit does indeed meet the 58db sound level that was advertised, approximately equivalent to the volume of regular speech.

Great Shopping expercience, Well worth the money As someone who relies on oxygen therapy, I can't express how grateful I am for the Portable Oxygen Concentrator NT02 from Oxygensolve. This 5L oxygen concentrator with dual mode functionality has truly been a game-changer for me. The oxygen concentration of 93% ±3% has helped maintain my blood oxygen levels consistently at 95%-96%, giving me peace of mind about my respiratory health. Additionally, I opted to purchase the large battery, and it has been a lifesaver when I'm out and about in town or at the mall. I no longer have to worry about the battery running out, allowing me to enjoy my outings without any interruptions. Thank you, oxygensolve, for providing a reliable and efficient solution for my oxygen therapy needs. This product has truly made a difference in my daily life.

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

We ordered a Varon VP2 machine 10 days… We ordered a Varon VP2 machine. 10 days later, we received an NT2 machine, which is an older model. We tried calling. Mailbox full. We tried texting. No response. We tried email. No response. I am going to contact my credit card company. A 2023 press release states that the VP2 is a new model.