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![CAIRE FreeStyle Comfort - Best Selling Concentrator]()
CAIRE Freestyle Comfort Portable Concentrator- Pulse Dose
- 5 Pounds
- 4 Hour Battery
- Includes Freestyle Comfort, 8 cell battery, power supply, carry bag and strap, and vehicle power cord.
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![O2 Concepts Oxlife Liberty2 Portable Concentrator - 800-0007-1V]()
O2 Concepts Oxlife Liberty2 Portable Concentrator- Pulse Dose & Continuous Flow
- 6.6 Pounds
- 4 Hour Battery
- Includes Liberty2, battery, AC power adapter, DC power cable and carry case.
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![CAIRE Freestyle Comfort 2 Battery Package]()
CAIRE Freestyle Comfort with Two Battery Package- Pulse Dose
- 5 Pounds
- Bundle Includes Two 8 Cell Batteries
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![CAIRE Freestyle Comfort Battery Package]()
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![ResMed Mobi Portable Concentrator]()
ResMed Mobi Portable Concentrator- Pulse Dose
- 5.5 Pounds
- 8 Hour Battery Life (Internal Battery)
- Includes the Mobi unit, internal battery, AC power supply and cord, DC power supply, carry case.
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![Oxlife Freedom Portable Oxygen Concentrator]()
Oxlife Freedom Portable Concentrator- Pulse Dose
- 5 Pounds
- 4 Hour Battery Life
- Includes the Freedom unit, battery, AC power supply, DC power supply, carry case.
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![GCE Zen-O Lite Portable Concentrator]()
GCE Zen-O Lite Portable Concentrator- Pulse Dose
- 5.5 Pounds
- 4 Hour Battery
- Includes the Zen-O Lite unit, battery, AC/DC power cords, bag and cart.
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![AirSep Freestyle 5 Portable Oxygen Concentrator]()
AirSep FreeStyle 5 Portable Concentrator- Pulse Flow
- 6.7 Pounds
- 2.5 Hour Battery
- Includes the FreeStyle 5 unit, internal battery, AC power supply, DC power cable, carry bag.
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![Inogen One G2 Portable Oxygen Concentrator]()
Inogen One G2 Portable Concentrator- Pulse Dose
- 7 Pounds
- 4 Hour Battery Life
- Includes the G2 unit, 12 cell battery, universal power supply, DC adapter carry bag.
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![Inogen One G3 Battery Package]()
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![Invacare XPO2 Portable Oxygen Concentrator]()
Invacare XPO2 Portable Oxygen Concentrator- Pulse Dose
- 7 Pounds
- 5 Hour Battery Life
- Includes the XPO2 Unit, a supplemental battery, AC and DC adapters, carry bag with shoulder strap.
Featured Videos
Getting Started with Portable Oxygen Concentrators Video
Top-Rated Portable Concentrators of 2025
Learn More About Portable Oxygen Concentrators
Why Choose Oxygen Concentrator Store and AMSR?
Here at American Medical Sales and Rentals we know that once you’ve been prescribed oxygen therapy things can get a little overwhelming.
Read More on Why to Choose Oxygen Concentrator Store
Introduction to Supplemental Oxygen
Respiratory diseases often create the need for more oxygen than what is available in the air. If you have COPD, you may already be using supplemental oxygen and if not you may have already discussed it with your doctor.
Read More on Supplemental Oxygen
Guide to Flying with an Oxygen Concentrator
In a continuing effort to educate oxygen users about traveling and flying with oxygen, we’ve created this guide to assist in planning your next flight. By planning well, you can ensure you that you can have an enjoyable and successful trip.
Read More Guide to Flying with Oxygen
Find the Correct Unit With Our Oxygen Therapy Survey
Discover the Unit that Best Fits Your Requirements, Lifestyle and Budget! Simply answer a few brief questions to assist us in learning what oxygen concentrator is best for you.
Take the Oxygen Concentrator SurveyA few revolutionary machines have been released over the past few years, and some older models have been updated with the new expectations that come along with the release of new oxygen technologies. The most recent technological advancements have brought the developments of some portable machines that are bringing a whole new concept of freedom to oxygen users. Of course, not every oxygen therapy product will be right for you. You’ll need to make sure the POC can meet all of your needs.
