Used Oxygen Concentrators----TP-B1

Used Oxygen Concentrators----TP-B1

Regular price $ 798.00 USD Sale price $ 259.00 USD

Our Used Oxygen Concentrators are ideal for users who are searching for a more affordable alternative instead of purchasing a new oxygen concentrator. There are their own advantages of whether buying a brand new or a used oxygen concentrator with good quality. An important point in purchasing a used unit is that the price is very affordable. We can provide you the used units with the same high quality and service. 

Our technical experts conducted a quality inspection on these items. Each of our units has been cleaned and thoroughly tested to ensure the highest level of operation. We are not only refurbished machines, and the only downside is that there may be some scratches on the outside and the outer box is slightly damaged.

Attention: Because of the location of our warehouse, the used oxygen concentrators are only available in United States. And our used machines need more time to repack. It takes 5-7 days to prepare for shipment. After that, it will takes 3-5 days to arrive.

If you want to buy a brand new one, please click here.


TP-B1 portable oxygen concentrator can be used indoors & outdoors and powered by battery & AC. Easy to carry and operate with small size and lightweight. It can help you get rid of the heavy burden of an oxygen tank. 

  • Oxygen Flow: 3 L/min continuous flow, not adjustable 
  • Oxygen Concentration: 30% concentration high-efficient oxygen supply, not adjustable (If you need up to 90% percentage of adjustable oxygen for medical treatment, please click here to choose OLV-C1 portable oxygen concentrator, which is more suitable for medical.)
  • Noise: below 48 dBA
  • Item Weight: 4.4 lb
  • Item Size: 9.84*4.72* 5.91 inches
  • Working Time: 24 hours (automatic power off every 4 hours for protection,  can be powered on immediately)
  • Battery Lasting: charged for 2 hours, lasted for 1-1.5 hours (click here to get an extra battery)
  • Power Requirements: car adapter DC 12-16.8 V, AC 110-240 V, rechargeable battery

TP-B1 Components
1X Portable oxygen concentrator
1X Instruction manual
1X Carrying bag
1X 5ft Tube & nasal cannula
1X Rechargeable battery: one 2200mAh battery(1-1.5 hours power supply) , one battery charger
1X AC Power Adapter
1X Car Adapter


Our pre-owned, the used oxygen concentrator inventory does vary from time to time. We will not always have the same amount of models in stock; however, you can contact us and left your information and need, when we have the inventory, we will contact you as soon as possible.

Our used unit does not support an unconditional one-month return policy.

If you are looking to save money, check with us to see if your model is in the used stock first for a much lower price. You will receive the same reliability.


Return & Refund Policy

Thank you so much for purchasing our products. It is sorry if our products can’t satisfy your needs. All of our products are supported by the return policy except the accessories and the used products. Before you apply to return or refund, please read our Return & Refund policy to confirm that your order is supported to be returned.


Your satisfaction is our top priority. For you can please read our return and refund policy:

  • There is no artificially damaged.
  • All parts and accessories must be in the original package and no item is missing.
  • Returning or Replacing can be processed within 30 days after receiving your product.
  • If you request a return caused by a product defect, please contact us. We will replace the new product or process the refund for you.
  • Shipping fees are non-refundable and the cost of return shipping is the responsibility of the customer.
  • Free shipping order will be deducted the original shipping fee upon the refund. The return shipping fee need to be paid by yourself.
    Item Weight ≤ 10 lb 11 lb - 20 lb 20 lb- 30 lb ≥ 30 lb
    Shipping Fee (Original) $25 $50 $80 $100
    • If you request a return & refund, we will charge you a service fee based on your payment amount. The fee mainly caused by the product value impairment and restocking fee.
    Product price 0-$99 $100-$299 $300-$599 $600-$899 ≥$900
    Service fee $20 $50 $80 $120 $200


    If you request a return caused by a product defect, we need a video to confirm this and keep it as proof. Please send it to our email address. We will replace or refund for you. Thank you for your cooperation.


    Refund Unavailable & Delay

    We cannot refund if it occurs one of the following situations.

    • Send products to the wrong address (including “return to sender”, please confirm the return address with us before returning. The return address is different from the shipping address.).
    • Choose the return method for cash on delivery.
    • Order the accessories or used machine.
    • The machine can only be replaced once without special situation, and the refund service will be unable to provide after replacement.
    • Logistics lost orders. We will submit claims to the express company on all orders that are not received. And we need our customers to provide a Claim ID. We will not reprocess refund until here is a resolution received from the express company. We can re-send a product to you if you want.

      Refund Process

      1. Contact us:, let us know your order number and the reason for the refund.
      2. If you want to claim a return for quality issue, we need a video to confirm this and keep it as proof.
      3. After we confirm and accept your application for returning or replacing, we will send you the return address.
      4. Sending the product back, and please email us the tracking number.
      5. The refund will be completed within 48 hours after we receive your return product.

            Note: Please contact us by email to request a return address before returning. Please do not send the product back to the original shipping address on the package. It is not our return address. If you return the product to that address, the return process cannot proceed normally.

            Refund Time & Attention

            The refund time will be different because of the PayPal or bank transfer system. If the refund time beyond this time limit, please contact the PayPal or your issuing bank for further information.

            • Refund Method: The refund will be processed to only your original account.
            • Refund time:
            1. PayPal: The refund will takes 1-2 business days to arrive.
            2. Credit Card: The refund will takes 7-15 business days to arrive.
            3. Western Union: The refund will takes 7-15 business days to arrive.

            Incorrect Shipping Address

            If you type in an incorrect address online to cause the delivery fail, we are regret about that. After confirming the parcel can arrive to our warehouse, we will re-send a new product to you, and we need to charge you the shipping fee for the re-sending package.

            Abnormal Situation

            If you request a return caused by a product defect, we need a video to confirm this and keep it as proof. Please send it to our email address. We will replace the new product or process the refund for you. Please contact us within 30 days of receiving your parcel.

            If you receive an incorrect product or miss accessories in any order due to an error on our part, please give us a picture for the items you receive, we will replace or resend it without additional charge. Please contact us within 3 days of receiving the item to arrange replacement.

            All of the products are guaranteed to be in good quality when you receive them. If the received product is damaged during shipment, please give us a picture for the items' damage, we will replace it without additional charge. Please contact us within 3 days of receiving to arrange replacement.

            How to cancel order?

            Before shipment: please email us ASAP, and name the mail"Cancel Order". We always handle this kind of emails firstly.

            After shipment: unfortunately the order cannot be canceled after shipment. Please firstly email us to ask the return address and sign the package, and then sent it back to the certain return address we give you.

            How to exchange the product?

            Replacing will be processed within 30 days after receiving your product. Please contact us by email to inform us of the product, your order number and model you want to exchange. Then please send the previous product back firstly. We will arrange to send the new product after receiving your return package and confirming your shipping address.

            How can I return the product?

            Please contact us at the first time, we will give you the appropriate return address. The unauthorized return is not acceptable.


            If you have any questions about our Return & Refund Policy, please feel free to contact us, we are glad to discuss this policy with you.

            If you have any questions about pre sale and after sales,contact us through:

            Livechat: You can start a talk with us in the lower right corner of the page.
            Phone:   626 807 5271 Monday to Friday: 09:00 am - 18:00 pm (West Coast)

                            213 370 6080 Monday to Friday: 18:00 pm - 24:00 pm (West Coast)

             (Due to our rapid growth our call volume is high and hold time is much longer than we would like. For fastest service and help resolving order issues please contact us with the livechat “we are here” button in the lower right corner of our website, or you can send us emails. )




            Ask a Question
            • How long on the battery

              Thank you for your question, we are glad to solve it for you.
              There is one 2200 mAh battery will be shipped with the machine. The TP-B1 machine has a 2200 mAh and 5000 mAh abttery. The 2200 mAh battery can be used 1-1.5 hours after charging 2 hours. The 500 mAh battery can be used 2-2.5 hours after charging 3 hours. Please click here to get the extra battery.