Erika is not the oxygen user
Erika is not the oxygen user. She is age 22. j
By erika D.
Monday, November 9, 2026 · Customer reviews of US businesses

The Fair Hearing score
Excellent
10,527 reviews
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Oxygen Concentrator Store from American Medical Sales and Rentals has been providing oxygen therapy experience since 2001 and we offer the highest quality brands of portable oxygen concentrators, home oxygen concentrators and solutions for sleep therapy. Our Respiratory Specialists are fully trained on every product we carry and are here to answer any questions you have.View Top Categories:Portable Oxygen ConcentratorsHome Oxygen ConcentratorsUsed Oxygen Concentrators
Oxygen Concentrator Store (oxygenconcentratorstore.com) has 10,527 customer reviews on The Fair Hearing, with an average rating of 4.8 out of 5.
Showing 256 reviews with 1 star · Clear filters
Erika is not the oxygen user. She is age 22. j
By erika D.
Still havent recieved my machine
By Nicolle
Response from Oxygen Concentrator Store· Feb 16, 2018
Thank you for your comment, Nicolle. We are very sorry to hear about your experience, and it’s our goal to make sure every customer receives the best possible service. Please contact us at 1-877-774-9271, so we can answer any questions. Sincerely, The AMSR Team
sales pitch rated battery for 5 hours at 2lpm. repeated tests barely got 4 hours
By James
Response from Oxygen Concentrator Store· Feb 16, 2018
Thank you for your comment, James. We are very sorry to hear about your experience, and it’s our goal to make sure every customer receives the best possible service. Please contact us at 1-877-774-9271, so we can answer any questions. Sincerely, The AMSR Team
Bad customer service
By Olivia J.
Response from Oxygen Concentrator Store· Feb 16, 2018
Thank you for your comment, Olivia. We are very sorry to hear about your experience, and it’s our goal to make sure every customer receives the best possible service. Please contact us at 1-877-774-9271, so we can answer any questions. Sincerely, The AMSR Team
We had nothing but trouble with the unit we rented! We told them that when we returned it but they still charged us ft the entire bill. They didn't care that we had some problems.
By Margaret
Response from Oxygen Concentrator Store· Jun 19, 2017
Dear Margaret, I am so sorry to hear of your troubles. I would like to get this resolved with you as soon as possible. Please call me at: 303-672-8003 at your earliest convenience. Again, I apologize for any issues and look forward to speaking with you. Sincerely, Paul Gonzales Director, Operations
Worst communication with any vendor ever. Maybe can take some classes from amazon in customer service?
By dis satisfied C.
Response from Oxygen Concentrator Store· Feb 16, 2018
Thank you for your comment. We are very sorry to hear about your experience, and it’s our goal to make sure every customer receives the best possible service. Please contact us at 1-877-774-9271, so we can answer any questions. Sincerely, The AMSR Team
The portable oxygen did not work! Having a very difficult time returning since last two weeks .michael ,who sold the unit, Ikeeps telling me that customer service will get back to me but they have not. Now I cannot get in touch with Michael as calls go through to his voice mail and he has not returned email message Paul answered the phone call on may 5 at 1240 EST and was very rude by constantly interrupting me and by repeatedly telling me about customer service and refused to forward me to a supervisor I wish I never heard of this company
By Lorraine
Response from Oxygen Concentrator Store· May 8, 2017
Dear Lorraine, We are so sorry about your negative experience with AMSR. We want to make this right. We tried to reach you earlier, but we’re unable. Can you please call us at: 1-800-644-4581 and ask for Sam. We want to do everything in our power to make your experience with us a positive one so please call us at your earliest convenience. Sincerely, The AMSR Team
Machine is big and noisy. Ad said was one of the quietest! Not so! Also makes a humming and vibrating noise that will only quiet down when machine is shaken. Would have called about it sooner but have had many health issues and time has gotten away from me. I am very unhappy with this machine as compared with the others I've had. Also, this machine is much bigger than my last one and it is blue! Would prefer black or beige, something neutral in color. I want to send it back. Please help!!
By Barbara
Response from Oxygen Concentrator Store· Feb 16, 2018
Hello Barbara, we want to thank you for your comments, and we're extremely sorry to hear about your experience. Please give us a call at 1-877-774-9271, so we can assist with your issue. Sincerely, The AMSR Team