Lisa B.
Not enough O2 at the setting it is set at and prescribed!!!
The machine doesn't produce the oxygen it should at the setting needed.

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 Five Star Index, with an average rating of 4.8 out of 5.
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Lisa B.
The machine doesn't produce the oxygen it should at the setting needed.
Caron, J.
One of the tanks delivered could not be opened with a wrench. It is torqued so tightly it broke the black plastic wrench provided
Response from Oxygen Concentrator StoreOct 12, 2026
Thank you for your feedback, and we're sorry to hear about the trouble with your tank. That sounds really frustrating. We've looked into this, and we don't sell or supply oxygen tanks, so we think this review may have been intended for a different company. We'd recommend contacting your tank supplier directly so they can help resolve the issue. If we've misunderstood and you did purchase something from us, please contact us at 877-303-9289 with your sales order number and we'll be glad to help.
JPMason
The customer service is excellent. I was easily given instructions for sending my equipment for service. Unfortunately, this is the second oxygen concentrator I have purchased from th oxygen concentrator store and both needed extensive service when the machine was less than 1 year old. The first machine was out of warranty because the company was no longer dealing with the machine, it was discontinued. The second machine a Inogen home had to be returned and I had to pay $40 even though it was under warranty. These machines were only used when I travel and had very few hours on them. At this rate, it is cheaper to rent the machine than to purchase a new machine every year.
Response from Oxygen Concentrator StoreOct 1, 2026
Thank you for your feedback and for recognizing our service team. We're glad the repair process was easy to follow, and we're sorry you needed it at all. We understand how frustrating it is when equipment you rely on for travel needs service, especially with so few hours on it. Oxygen concentrators are hardworking machines with many moving parts, and it's common for them to need a repair at some point during the warranty period. That's exactly why the warranty is there, and we're glad yours was covered, so the repair itself didn't cost you. We'd also like to clarify the $40 charge. The repair was covered under warranty, and the $40 is for a prepaid UPS shipping label. We offer this to every customer as a convenience if they'd like us to provide the label, and customers are always welcome to ship their unit on their own instead. We're sorry that wasn't made clearer when you arranged the repair. If you need assistance in the future, please do not hesitate to call 877-303-9289.
Pat K.
I ordered a cart for my Rove 6 concentrator and it sits so low in the cart that it can’t be plugged in.
Response from Oxygen Concentrator StoreSep 18, 2026
Thank you for letting us know about this, and I'm sorry for the frustration with the cart for your Rove 6. That's not the experience we want you to have. We've tried reaching you several times by phone and once by email to get this resolved but haven't been able to connect yet. We'd really like to make this right. Please give us a call at 877-303-9289 whenever it's convenient, or reply to the email we sent, and we'll take care of this right away. We appreciate your patience and hope to hear from you soon.
ABBY
Chris was very helpful and very nice Unfortunately after a few uses my mom passed away and I attempted to use the buy back feature but the website gave me bad info so I sold it to another company Chris contacted me to help but it was too late I appreciate Chris’s attention but unfortunately I did a deal elsewhere.
Response from Oxygen Concentrator StoreAug 31, 2026
Thank you for sharing this, Abby, and please accept our heartfelt condolences on the loss of your mother. We are so sorry you were navigating our buy-back process during such a difficult time. We are glad Chris made a good impression, and we are sorry to hear the information available to you was not clear, which understandably led you to make other arrangements before he could step in. We truly wish the timing had worked out differently. We deeply appreciate you taking the time to leave this feedback despite the circumstances, and we are grateful Chris could be a bright spot during a hard week. If there is ever anything we can do for you, please don't hesitate to reach out directly at 877-303-9289. Wishing you and your family peace and comfort during this time.
Fowler, C.
To hard to understand the different settings. ABCD what number should I use.
Response from Oxygen Concentrator StoreJul 24, 2026
Thank you for your feedback, Clark. We're sorry the different settings were confusing to follow. Please call us at 877-303-9289 and our team will be happy to walk you through exactly which setting is right for you. If you ever need anything else, feel free to reach out, we're here to help!
Forrester, L.
Although the store communicated well. The oxygen concentrator didn't work upon arrival after being repaired. Update 7/21/26 they did allow us to send it back free shipping for them to repair it. We did receive it back, they said they couldn’t find the issue. However, the machine makes a loud noise now. I did speak with a representative that said it is probably not going to affect the operation of the machine and she will make a note of it and we can ship it back if the machine fails to operate properly. It is loud…We did send the machine back again because the noise kept getting louder. When they received it I had to call to see if the received the machine and find out what was wrong with it. The capacitor was loose in it that is what was making the noise, after them repairing the machine and sending it back to us once again, it is operational. This has definetely been an experience. Their customer support is really good. The quality of the machine I'm not sure since it has been sent back and forth many times for repairs since receiving the machine.
Response from Oxygen Concentrator StoreJul 1, 2026
Thank you for your feedback, Lavinda, and we sincerely apologize that your concentrator was not functioning properly when it arrived after the repair. That is absolutely not the experience we want for any of our customers, and we take situations like this very seriously. I'm glad we were able to reach out right away and work through some troubleshooting together, and that the unit is now up and running. Please don't hesitate to reach out at 877-303-9289 if anything comes up in the meantime, we want to make sure this is fully resolved for you. Update: Thank you for updating your review and for your patience. We're glad the communication has been helpful. If you notice any continued noise or change in performance, please reach out and if you'd like to send the unit in, we've documented everything on our end and will make the process as quick as possible. You can always call us at 877-303-9289 with questions. Update: We apologize for not catching the loose capacitor on the first pass. Oxygen concentrators are essential equipment, and back-and-forth repairs are never the experience we want our customers to experience. We're relieved to hear the machine is now operational, and we appreciate you recognizing our customer support team's efforts along the way. If you notice any further issues with the machine, please don't hesitate to reach out to us directly.
Kazel, W.
The unit you shipped did not work. They want me to pay for the return, then they will inspect it and consider sending a replacement or refund. Their front office talked to the shop and they sorted out their communication problems. I then received a good new unit and a full refund.
Response from Oxygen Concentrator StoreJun 17, 2026
Thank you for sharing your feedback, William, and we are truly sorry to hear that your unit arrived not working. That is never the experience we want for our customers. We did reach out to you to help resolve this but unfortunately were unable to connect. We also want to clarify the options we offered, as we want to make sure the process is as easy as possible for you. 1. The first option is to return the defective unit, and as soon as we receive it we will ship your replacement immediately at no cost to you. 2. The second option is that we ship your replacement right away, and we simply ask for a refundable deposit in the meantime. Once we receive the defective unit back, your deposit is returned in full. You chose the second option, which is why a deposit was placed. Regarding the shipping charge, that was a UPS pickup fee for having the unit collected directly from your home. We would still love to help get this resolved for you. Please give us a call at 877-303-9289 so we can make sure you end up with a fully working unit as quickly as possible. If you ever need anything else, feel free to reach out, we're here to help!