Ronald C.
Machine is great..best performance over…
Machine is great..best performance over other made to break

TTLIFE from American Medical Sales has over 15 years of oxygen therapy experience and we offer the highest quality brands of Portable Oxygen Concentrators, Home Oxygen Concentrators.
TTLIFE (oxygenconcentrator.shop) has 267 customer reviews on Five Star Index, with an average rating of 3.7 out of 5.
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267 approved reviews, newest moderated first
Ronald C.
Machine is great..best performance over other made to break
Michael R.
There seemed to be a problem with the order. They acted immediately to correct the misunderstandings. The sevice was excellent and product is working fantastically. I would highly recommend doing business with these people. The oxygen concentrator was priced so low I did not expect it to be of such high quality. It is extremely small and quite enough to sit on the bed stand next to my bed with no notable noise. It is as quiet as my CPAP, possibly even quieter. I bought it as a backup for my large condenser which I have had for many years. The old one has been extremely reliable but is huge (about 30 lb.) and so noisy I have had it in the hallway outside my bedroom in order to sleep. I recommend it as a great choice as well as the integrity of the company and excellent service. I have put the old noisy beast away as a backup and am delighted in every way with my new device.
Verla
The unit wasn't what I expected and in trying to get a hold of someone the phone # that came with the unit went to a full mail box and the email wasn't accurate email. I went on line and found a phone #. That person said I had to contact customer support via email. I requested via that email to receive a phone call and was advised communication only via email. Basically you have no support. Their response they would call. I tried every email sent me and never got a CBK after giving them all the info requested. Their response not true
Response from TTLIFEJan 4, 2026
Dear Customer, We’re truly sorry to hear about your experience, and we sincerely apologize for the frustration this has caused you. We do want to clarify that we do provide phone support when needed. Please reply to our support email and include your phone number, time zone, and a convenient time to call, and our team will be happy to arrange a call with you. Email communication is still necessary, as some support and warranty processes require written confirmation to ensure everything is handled clearly and correctly. That said, we absolutely understand the importance of speaking with a real person and are more than willing to do so. Your feedback is very important to us, and we’d truly appreciate the opportunity to assist you and make this right. Kind regards, Customer Support Team
shelli
I ordered because website said in stock and ready for shipping. They charged my credit card immediately. I was contacted the next day with a statement that the product was in fact not available and offered an alternative unit that was stated to be the same functionally but a few visual variances. The statement even stated that the alternative product was local and ready to ship. A USPS shipping label was created and that is about all that happened. USPS never recieved the product to ship it. The company responses are written very poorly and it is evident that this is not a legitimate company. My husband passed away this morning and I do not need the product since they could not hold up their end of the transaction, I have filed a dispute with my credit card to have my money refunded from this fraudulent company
Response from TTLIFEDec 22, 2025
We are truly sorry for the inconvenience this situation has caused and, more importantly, for the loss of your husband. Please accept our deepest condolences during this very difficult time. We sincerely apologize for the confusion and delay with your order. This is not the experience we want any customer to have, and we understand your frustration. We will take responsibility for resolving this properly and as quickly as possible. Please share your order number with us so we can locate your order immediately and arrange a full resolution for you. Thank you for giving us the opportunity to make this right, and again, we are very sorry for your loss.
august F.
needed portable oxygen generator for my wife ordered an NT-5 from TTLife with an insurance policy that guaranteed no hassle return. My wife took a turn for the worst, so the NT-5 was not needed, it was new in the box never plugged in. I proceeded to return it, TTLife's only response was, (they would give me $70 and I should sell it to someone else). Sister companies Xygenvip and Oxygensolve all the same scam group!
Response from TTLIFEDec 22, 2025
We're truly sorry for what you and your wife have been going through, and we understand how upsetting this situation must be. This is not the experience we want for any customer, especially during such a difficult time. Our customer support team has already reached out to you via email and is actively working on resolving the issue. Please take a look at the email, and we kindly ask for your cooperation so we can resolve this matter as smoothly and quickly as possible.
Terron E.
Great product. Wish battery life was more. But get extra battery when you purchase!
dann
fixed the problem
Response from TTLIFEDec 16, 2025
We’re very sorry for the trouble this has caused you. Our customer support team is actively working to resolve the issue, so please don’t worry, your satisfaction is our top priority.
Jt
Works great very happy with it