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.

Fast Delivery I couldn't be happier with my purchase during the promotional event! Not only was the price of the oxygen concentrator remarkably affordable, but it also came with all the necessary accessories. Just five days later, I received my much-anticipated machine. It's working flawlessly and has truly satisfied all my needs. Fantastic service!

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.

Horrible customer service and dishonest They are just a bunch of scam artists. We wanted to return an unopened oxygen concentrator and they made the return process so difficult with constant back and forth emails and then demanded that unless the device reached them within 2 days of their final email they would not honor the refund. This company should be shut down.

Order oxygen concentrator December 23… Order oxygen concentrator December 23 2021 received following week damaged. Contacted ttlife several times and sent pictures each time as requested. Now end of March 2022 and told replacement time is expired. I am screwed by another Chinese company.. never order directly from any foreign company. I will always go thru Amazon they have instant refund or replacement. TTLife sicks big time.