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.

I purchased this machine for my… I purchased this machine for my brother, who relies on an oxygen machine for his daily needs. It has been a game-changer, granting him the freedom to venture out with confidence. Its compact size and accompanying carry bag make it incredibly convenient, and the inclusion of a car charger for travel is a huge plus. What's particularly impressive is its dual-mode functionality; it switches seamlessly between pulse mode and continuous flow, ensuring uninterrupted oxygen delivery. So far, my brother is delighted with its performance. However, I must mention that the initial machine we received was defective and failed to deliver oxygen. Thankfully, the company's customer service was outstanding. Upon contacting them, they promptly responded and, after reviewing a short video demonstrating the issue, arranged for the faulty machine's return. The replacement was dispatched the very next day. Based on our experience, I wholeheartedly endorse both the machine and the company behind it. Their swift and efficient handling of the situation underscores their commitment to customer satisfaction.

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.

Excellent oxygen concentrator I am currently using the NT-04 oxygen concentrator and it is an excellent machine. It is lightweight, quiet, and offers seven oxygen settings. The price is also very reasonable. In fact, I am using it while typing this review. I recently received my NT-04 and I am extremely satisfied with its performance. It quickly raises my oxygen levels to the level recommended by my doctor for someone my age with asthma. Overall, I am glad I made the decision to purchase the NT-04 as it has proven to be a great solution for my needs.