Dealing with COPD had me stuck at home Dealing with COPD had me stuck at home, feeling pretty low. Then I found TTLIFE’s oxygen concentrator – it changes my life! It's lightweight, quiet, and doesn’t break the bank. Now I’m back to enjoying walks and shopping without worrying about oxygen. Big thumbs to TTLIFE's customer service – you guys great!

Complaints based on inaccessible… Complaints based on inaccessible customer care. Do not yet know the quality of the item. Non-functioning customer service telephone line. Largely automated customer service email replies. Makes customer pay for shipping of returns. They do not take back accessories and supplies. Only the machines.

No working phone number No working phone number. I paid for a machine and it is lost in the mail TTLIFE has done NOTHING to resolve the problem. They refused to return my money or ship another machine. TTLIFE blames the shipper yet they will not give me the name or phone number for them. RUN don't walk away from this company.

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.

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.