Good air flow
Having continuous air flow is exactly what I need. The insurance gave me a pulsater type machine, which is not good for me.
By Michael
Saturday, November 7, 2026 · Customer reviews of US businesses
The Fair Hearing score
Average
267 reviews
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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 The Fair Hearing, with an average rating of 3.7 out of 5.
267 approved reviews, newest moderated first
Having continuous air flow is exactly what I need. The insurance gave me a pulsater type machine, which is not good for me.
By Michael
I live with a constant fear that I will find myself with no oxygen. Regular machines are heavy and can be awkward but with these portables, I can move them and take them wherever I go. I cannot believe that Dr don’t recommend these machines. I loved my first one so much, I bought another one. Highly recommend.
By Connie D.
Still waiting on 2nd battery, should have been delivered with order.
By Mercina G.
It was ordered and delivered the process has definitely assisted experience with overall health
By Thomas D.
This company (based in Hongkong) is a total scam. I am basically out $300 for a non-medical grade oxygen concentrator that failed after only two months of normal usage. The company purports to offer a one-year warranty yet refuses to send a shipping label so I can return my defective unit for repair or replacement! Customer service cannot be reached during US business hours and has yet to provide a relevant response to my email queries. Buyer Beware! I will never do business with this OR ANY company in China again. They are neither reliable nor ethical!
By Carol A.
Delivered on time and so far both the room and portable units are working very good. I wish the NT6 portable unit had a longer battery life. So far the battery only last almost 2 hours.
By Al M.
My items are wonderful and the process to order is very easy.
By Dollie F.
Unit was delivered on time and easily set up. Concentrator is very, very quite. I've logged over 50 hours and its does great.
By James L.