Used Oxygen Concentrator Buying Guide

Used Oxygen Concentrator Buying Guide

We carry refurbished, gently used oxygen concentrators of only the best, most reliable, and low maintenance oxygen concentrators in the industry. If you need to adhere to a tight budget when shopping for a portable or a home oxygen concentrator, take a look at what we have in our used stock. Our highly trained service technicians do a 30-point concentrator inspection before certifying each used concentrator. Key inspection points our technicians check: gasket seals, values and piston cups, compressor, motor mounts; as well as cleaning components and replacing all filters.

How to Choose an Used Oxygen Concentrator

You must first narrow your selection down to which concentrators will cover your oxygen needs as prescribed by your doctor. Decide if you want/need a portable oxygen concentrator, which you can take with you while traveling, or if you will be staying at home while receiving oxygen therapy. If you are buying a used portable model, consider the weight and the battery life. For a home concentrator, consider the energy consumption.

Used Prices are determined by:
  • Amount of hours on the machine
  • Available warranty on the machine
  • Age of the machine
Used Brands Available: CAIRE, Inogen, Philips, Invacare, DeVilbiss, Respironics, SeQual, AirSep

Used Portable Models

Invacare XPO2 This is a customer favorite among the portable models we carry. It's only 6 lbs and comes with a sleek black carry bag. The concentrator itself also seems to blend in with its surroundings, because of its diminutive size and slim shape. The buttons are large and easy to read, with a simple control panel. Your used Invacare XPO2 comes with 1 battery, an AC an DC adapters, a cannula and its carry bag. It delivers between 1 and 5 LPM of oxygen at a pulse dose only.

Invacare Solo One of the quietest portable used models available, as well as one that features both pulse dose (1 – 5 LPM) and continuous settings (1 – 3 LPM). It weighs 20 lbs with the battery and features the SenseO2 technology that makes it one of the most accurate and reliable in delivering the right amount of oxygen to its owner. The purchase of this used but still reliable machine comes with 1 battery, ac and dc adapters, cart, manual, and cannula.

Lifechoice If you only need a pulse dose at 1, 2 or 3 LPM, this portable model is for you. This 5 lb portable concentrator is in great condition, despite being previously used and will give you at least 3 hours of complete portability on two batteries starting with a 100% charge. With the carry bag, it only appears to be a simple bad worn across the shoulder. This would also be great for high altitude hiking, with a maximum operational altitude of 10,000 feet above sea level. This refurbished model comes with ac and dc adapters, carry bag, 1 battery, manual, and cannula.

SeQual Eclipse 3 This is a wonderfully versatile portable concentrator, capable of delivering a pulse dose between 1 and 6 LPM, and continuous flow between 1 and 3 LPM. It weighs 18 lbs with the battery and can be worn on your back, or pulled along with a cart. You will get yours with 1 battery, carry bag, manual, ac and dc adapters, and cannula. You can count on a little over 2 hours of battery life at the highest pulse dose setting, and a little over 1 hour on the highest continuous setting.

DeVilbiss iGO One of our toughest portable concentrators. It can work just as well at an altitude of 13, 123 feet outside of an airplane, with a maximum operational temperature of 104 degrees Fahrenheit. It features pulse dose settings between 1 and 6 LPM and continuous flow settings between 1 and 3 LPM. You'll get the AC and DC adapters, a battery, cannula, carry bag and owners manual with your iGo. The battery will live for as along as 5.4 hours on the pulse dose setting of 1.0 LPM.

Used Home Models

Sequal Integra Our used model has been used, completely refurbished and tested, and it works great between the settings of 0.5 and 7 LPM. A new model is capable of up to 10 LPM, but it has a 90 day warranty on parts and labor and will save you a bundle if you just need a home concentrator that delivers up to 7 LPM. This is a crowd favorite because of its simple control panel, tough design and ease of user maintenance.

Used Respironics EverFlo: The EverFlo is one of our best deals for a used home oxygen concentrator. This Pre-Owned unit delivers 0.5 and 5 LPM of continuous flow oxygen and weighs around 31 pounds. It is fully-tested and the design features combine quiet operation, compact design, and low maintenance into a single unit. Learn more about the Used Respironics EverFlo.

Invacare Perfecto 2 This compact and quiet unit can put out oxygen between 1 and 5 LPM and is one of our most energy efficient. With minimal use and a 2 year, 4 month warranty on parts and labor, this is a great deal on a used home concentrator. It still runs like a champ at an altitude of 10,000 feet above sea level and at temperatures as high as 95 degrees Fahrenheit. It also features a built in handle at the top of the cabinet so you can easily wheel it to a different area of your home. Used Invacare Perfecto 2.

Invacare 5 Puts out oxygen with a concentration of as much as 95%, between the settings of 1 and 5 LPM, with this used, completely refurbished model. A 90 day warranty on parts and labor is included with this unit. It also only uses around 400 watts, which is less than many other home oxygen concentrators. Its built-in handle in the center of the top of the cabinet makes it easy to move around.

AirSep New Life This used, entirely serviced and rebuilt home concentrator uses only 350 watts, making it one of our most energy efficient used models. It can give you between 1 and 5 LPM of continuous oxygen flow. The hours of previous use will vary, but it comes with parts and labor warrant that cover it for 90 days after purchase. The machine is small and only weighs 50 lbs.

DeVilbiss A great reliable brand and the favorite of many of our customers. Each DeVilbiss home model features the DeVilbiss OSD (Oxygen Sensing Device), which increases accuracy for longer durations. The DeVilbiss 515A has LPM settings from 1 to 5 and is only 37 lbs, making it one of the lightest home concentrators. The intake filter will quickly show dirt so you know when to replace it, and it's easy to access. The oxygen comes at a concentration of as much as 93%. These used models come with a 90 warranty.

Used Concentrator Glossary

  • Pulse Dose Generally a setting featured in portable oxygen concentrators. This is a puff of air (also known as a bolus), released when the machine senses negative air pressure when you are about to take a breath.
  • Continuous Flow Featured in some portable models and in all home concentrators. The air from the machine is flowing at a constant rate through the mask or cannula.
  • LPM The unit in which the flow of oxygen is measured.

    Varying hours of use – Some of our used models have been used longer than others.
  • Varying warranties Some of our used concentrators have warranties that will soon expire, or still have there original 3 year warranty.
  • Parts and labor warranty Our refurbished units may come warranty, which covers any labor and parts that it may need for the 90 days after you've purchased it.
  • Updated: May 17, 2022

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