It's easy to use, and I can go out easily. I purchased my own unit about 2 months ago, and I absolutely love it. I also got an extra battery for peace of mind. It's so convenient to switch to the spare battery when the first one runs out, and it only takes seconds. This device has made it much easier for people like me who had difficulty getting out in the past.

So happy with my purchase! I am extremely pleased with my purchase. The device works excellently, offering around one hour of usage on a single charge and taking approximately one hour to recharge. It is also lightweight and easy to carry. As a resident of Alberta, Canada, I received my order within nine days, which was quite impressive. To summarize, my experience with the oxygen concentrator has been fantastic, as it arrived promptly and has been functioning exceptionally well.

So far So far, so good! I've only had the unit for 4 days, but it seems to be working well. A friend of mine wants to order the same NT-03 model, and I might gift one to him for being such a helpful friend. I'll need more information from him to confirm if this is the model he wants.

Reasonably Priced,Highly Recommended I received my oxygen concentrator NT-02 a few days ago and I am pleased to say that I am impressed with the product and the company. I purchased the unit for $799 and it has exceeded my expectations in terms of performance. I have struggled with COPD and in the past, I purchased a different brand that did not work as well. Due to my lack of insurance, I had to leave the hospital against medical advice. I decided to take a chance on this machine and I consider it to be a win. It helped me recover and provides high-quality oxygen when needed. I was able to get my oxygenator at a very reasonable price and it works great. I received it a week ago and I am very happy with the quality. I have already recommended this product to others.

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.