Alvin
I'm at loss on how to change the filter…
I'm at loss on how to change the filter cotton in my NT-02, but after contact their customer service team, they promptly sent me a how-to video. They were both friendly and professional

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
Alvin
I'm at loss on how to change the filter cotton in my NT-02, but after contact their customer service team, they promptly sent me a how-to video. They were both friendly and professional
Kevin E. P.
Although the machine has arrived, and seems to be in good working order, their customer service is an absolute nightmare. Avoid this place like the plague. They are slow to answer their emails and don’t answer the phone because they don’t speak English. I wish I could come here and read the reviews first. Edit: the machine has stopped working and they will do nothing about it.
Response from TTLIFEOct 26, 2023
Dear Kevin, We sincerely apologize for the negative experience you had with our customer service. We understand your frustration and disappointment, and we deeply regret any inconvenience caused during the process. Since your review, we have taken your feedback seriously and have implemented necessary measures to address the issues you raised. Our customer service team has undergone extensive training to enhance their communication skills and response time. Regarding the issue with your machine, we are extremely sorry to hear that it has stopped working and that you did not receive the necessary support from us. Please accept our apologies for the inconvenience caused. We would like to make things right for you. We kindly request that you reach out to us directly with your order details and any relevant information regarding the machine's malfunction. Our team will prioritize your case and work diligently to find a solution that meets your satisfaction. At TTLife we always strive to provide excellent products and outstanding customer service, and we genuinely appreciate your feedback as it helps us identify areas for improvement. Once again, we deeply apologize for any inconvenience caused, and we hope to rectify the situation promptly. Thank you for bringing your concerns to our attention, and we look forward to resolving this matter for you. Best regards, TTLife
Mohammad Q.
They are just a bunch of scam artists. We wanted to return an unopened oxygen concentrator and they made the return process so difficult with constant back and forth emails and then demanded that unless the device reached them within 2 days of their final email they would not honor the refund. This company should be shut down.
Response from TTLIFEOct 26, 2023
Dear Mohammad, We are sorry to hear that you had a negative experience with our customer service team when attempting to return your unopened oxygen concentrator. We apologize for any inconvenience caused, and we would like to address your concerns to ensure that this does not happen again. Our team has undergone extensive training to provide our customers with excellent service, and we are sorry to hear that we fell short in your case. We understand that the return process can be frustrating, and we apologize for any frustration you experienced as a result of our communication. Regarding the time limit for returns, we understand that our 2-day policy may have been challenging, and we acknowledge that it may have been unreasonable under the circumstances. We will look into adjusting our policies to provide a more reasonable window for returns in the future. We take all customer complaints seriously and would like to try to make it right. Please reach out to us directly with your order details, and we will do our best to address your concerns and find a suitable solution for you. We would be happy to work with you to resolve this matter. Thank you for bringing this to our attention, and we apologize again for any inconvenience caused. We will continue to strive for excellence in our customer service and improve our processes to ensure we meet our customers' expectations. Best regards, TTLife
James H.
Wish I had stopped here before buying. The machine sent does not produce a flow rate of 1 liter of o2, much less the 7 claimed. It's so low I can't get a oxygen concentration from my meter. Since I firts wrote them they keep claiming the video I sent them shows it's working, when it shows it not. Getting a refund is looking bad. Updating, they have just agreed to let me ship it back - TO CHINA! "Drop off your product at the nearest UPS or FedEx station and mail your product to the following address. Please do not send the cash on delivery package, which will result in our warehouse not being able to sign the package. Recipient Name: Gefeifei Address: 3rd Floor, No. 2 changfang, SujiaAihua, No. 1511, JingangDaDao, Fucun Zhen, JinyiXinQu. City: JinHua city State: ZheJiang province Zip Code: 322100 China Phone: +86 13758993571 3"
Response from TTLIFEOct 26, 2023
Dear James, We are sincerely sorry to hear about the issues you encountered with the machine you purchased from us. We apologize for any inconvenience caused and understand your frustration with the situation. We deeply regret that the machine did not meet your expectations and did not produce the flow rate as advertised. Our intention is always to provide high-quality products that function as described, and we apologize for falling short in this instance. Regarding the video you sent us, we apologize if there was any miscommunication or misunderstanding during our correspondence. We are committed to resolving this issue to your satisfaction. We would appreciate it if you could provide us with any additional details or evidence that would help us better understand the problem and find a solution. We are sorry that this machine does not meet your needs, we conduct strict testing and inspection on the products. Now we have launched an upgraded version of the home oxygen concentrator. If you are interested, you can click this link (https://tinyurl.com/tbvbmzrc) and we are willing to communicate with you and obtain the upgraded version of the machine. Once again, we apologize for any inconvenience caused, and we are determined to make things right for you. Your feedback is valuable to us, and we appreciate you bringing this matter to our attention. We remain committed to providing excellent customer service and ensuring that our customers are satisfied with their purchases. Please reach out to us directly with your order details so that we may assist you further. Thank you for your patience and understanding. Best regards, TTLife
marco P.
I exchanged 50 plus emails to customer support. No success to have matters worked out. They keep trying to shift the responsibility to the client. Now, I doubt the equipment works. It is an absurd that a company like this is still there, playing with the health of people.
Response from TTLIFEOct 26, 2023
Dear Marco, We sincerely apologize for the negative experience you had with our customer service. We understand your frustration and disappointment, and we deeply regret any inconvenience caused during the exchange of emails. We apologize if our customer support team did not meet your expectations in resolving the issues you encountered. Our aim is always to provide excellent service and ensure customer satisfaction, and we acknowledge that we did not deliver on this front in your case. Regarding the shifting of responsibility, we apologize if it seemed that way. Our intention is to work collaboratively with our customers to find the best possible resolution. We understand that clear communication and taking responsibility for our products is crucial, and we are committed to addressing this issue in our customer support training moving forward. We understand your concern about the functionality of the equipment and how it may impact your health. Rest assured, we take such matters very seriously and would like to resolve this for you promptly. Here is our upgraded version portable oxygen concentrator that you may interested link:https://tinyurl.com/3udkw8ub. Please provide us with any additional details or evidence that would help us understand the situation better, and we will do our utmost to find a suitable solution. Once again, we apologize for any inconvenience caused. We value your feedback and appreciate you taking the time to bring this matter to our attention. It is through feedback like yours that we can make improvements and ensure that all our customers have a positive experience. Please contact us directly with your order details so that we can assist you further and work towards resolving this matter to your satisfaction. Thank you for your patience and understanding. Best regards, TTLife
LV
I am under the impression this company is a scam. I placed an order 4 days ago and have not received any information when the oxygen concentrator will be shipped. No way to track the request. I sent them email asking these questions and NO response. They Do Not answer the phone.
Response from TTLIFEOct 26, 2023
Dear LV, We sincerely apologize for the negative experience you had with our company. We understand that you felt frustrated and left in the dark, and we take full responsibility for not living up to your expectations. We acknowledge that communication is key, and we apologize for the delay in responding to your emails. Our customer service team has been experiencing an unusually high volume of inquiries recently, and this has caused some delays in responses. Regarding your order, we are sorry that you have not yet received any information on when your oxygen concentrator will be shipped, and we understand that this has caused you concern. We want to assure you that we are not a scam company, and we are committed to delivering high-quality products to our customers. To make things right, we would like to offer you a discount on our upgraded oxygen concentrator products, which have a faster shipping time and more features than our previous model. We are confident that you will find these products to be of excellent quality and be satisfied with your purchase. Please accept our sincere apologies and the offer of a discount on our upgraded oxygen concentrator products. We value your feedback and will use it to improve our communication and customer service moving forward. Thank you for bringing this matter to our attention. Please visit the following link to browse our new and improved products: https://tinyurl.com/3udkw8ub. If you have any further questions or concerns, please do not hesitate to contact us directly. Best regards, TTLife
Bob S.
Product came cracked because the shipping tie Wrap was way to tight, in fact this was likely broke before it left the factory. Customer No Service is just an Excuse Think Tank of how to do anything other then to replace the product and make it right for the customer or refund your $$.
Jennifer R.
This company has a worst customer service. They don't respond to emails accordingly. They state on website they offer 30 day return and when you request to return an item they give you the run around. Charging all these fees to return an item and not provide address to send item back. I am really disappointed in the lack of customer service and lack of communication. I will file a dispute through PayPal. Please read reviews before buying from this company.