Great concedntrator - so lightweight and easy to take anywhere with you. I needed a concentrator that I could take with me on walks plus my automobile traveling. Lightweight and easy to handle. This NT-05 I purchased fit my budget, as for what I paid, I feel it has a lot to offer. Quiet, easy to use, affordable. I love it.

TTLife's website is really impressive TTLife's website is really impressive! It's very professional and offers a comfortable browsing experience. The product descriptions are very detailed, and I appreciate that they offer a 30-day return policy and reliable shipping services. I've subscribed to TTLife's website to stay updated on their products and promotions. Thank you!

Price,quality Price,quality, and customer service made this one of the best purchases I've ever made, and I am 92. My needs may be a little unique in that I have congestive heart failure but normal ecgs and echocardiograms. They put me on oxygen. Living in a flood zone in an elevated house meant needing help getting up and down stairs . I was looking for a portable rechargeable oxygen generator to give me more freedom. No help needed. After careful investigation I found the NT 05. From the moment I opened the box and saw how carefully it was packed I realized I was getting a quality product. The instructions were clear and it was easy to get it ready for testing to see if it met my needs. NO problems. It now gives me the ability to come and go as I please. The battery easily lasts two hours so I don't have to worry about it shutting off (4 hrs with the back up battery). I looked at a lot of generators, most cost hundreds if not thousands more and did not have the same features. The customer service was great, the same quality as the product they sell.

Poor customer service Although the machine has arrived, and seems to be in good working order, their customer service is an absolute nightmare. Avoid this place like the plague. They are slow to answer their emails and don’t answer the phone because they don’t speak English. I wish I could come here and read the reviews first. Edit: the machine has stopped working and they will do nothing about it.

NT-02 to the Rescue! Just got the NT-02 today and wow, what a difference it's made for my mother with severe COPD. The machines we tried before just weren't cutting it. But with the NT-02, her breathing has improved noticeably. It's such a relief to see her more comfortable. Highly recommend the NT-02 for anyone struggling with similar issues.