Used Oxygen Concentrators-KJ 8000-TTLIFE OXYGEN CONCENTRATOR
Used Oxygen Concentrators-KJ 8000-TTLIFE OXYGEN CONCENTRATOR
Used Oxygen Concentrators-KJ 8000-TTLIFE OXYGEN CONCENTRATOR
Used Oxygen Concentrators-KJ 8000-TTLIFE OXYGEN CONCENTRATOR

Used Oxygen Concentrators----KJ 8000

Regular price $ 619.00 USD Sale price $ 189.00 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. 

(If you need up to 90% percentage of oxygen for medical treatment, please click here to choose Handle Oxygen Concentrator Tp, which is more suitable for medical.)

  • Oxygen Flow: 1.2 L/min continuous oxygen flow 
  • Oxygen Concentration: 45%-55% concentration high-efficient oxygen supply
  • Atomization function & negative ion sterilization
  • Power Requirements: car adapter, AC power, rechargeable battery
  • Item Weight: 5.2 lb
  • Item Size: 8.5*3.1*11.8 inches
One-button start, can be placed horizontally and vertically, with highlight led lamp and dual air filter.
Easy to use: two gears to adjust the atomization and oxygen production, we send one power universal adapter for free.
Tips: Generally, it can be used continuously for 1.5-2 hours. The machine's protection mechanism automatically stops the operation of device when it overheats, and it can be turned back on and used.

KJ-8000 Components
1X oxygen maker
1X oxygen tube
1X Nebulization tube
1X Battery charger
1X Power adapter
1X Car charger
1X 2200mAh Battery
1X Instruction manual

☛ Click here to get An Extra Battery for KJ-8000 portable oxygen concentrator.

(If you need up to 90% percentage of oxygen for medical treatment, please click here to buy DDT series, which is more suitable for medical.


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 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.


✅ Delivery: Fast Delivery 3-5 business days in U.S.
✅ Free Shipping Over $199 in U.S.
✅ 30 Days-Money-Back Guarantee Easy Return
✅ Please confirm the return address with us before returning. The return address is different from the shipping address on the package.

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. )




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