The 8 Best Portable Oxygen Concentrators of 2020

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First Look

Best Overall: Inogen One G3 at Inogen

"Has a high pulse-flow range, and is ultra-portable, weighing less than five pounds."

Best Budget: Precision Medical EasyPulse PM4150 at Vitality Medical

"A pulse-flow concentrator with one filter for easy cleaning."

Best Small: AirSep Focus at Oxygen Concentrator Store

"Light and quiet, less than seven inches tall and wide."

Best Battery Operated: Lifechoice ActivOx Pro at Oxygen Concentrator Store

"A pulse-flow POC with just over 10 hours of battery life."

Best Continuous Flow: Respironics SimplyGo at Respshop

"FAA-approved so you can bring it on airplanes stress-free."

Best Pulse Flow: Respironics EverGo at Oxygen Concentrator Store

"Has a pulse setting up to six and comes with a rolling travel cart."

Best Lightweight: CAIRE Freestyle Comfort at Vitality Medical

"Despite its petite size, it lasts up to eight hours."

Best Multi-System Delivery: iGo POC System at 4MDMedical

"Provides the option of continuous or pulse-flow and runs at a soft 40 decibels."

Our Top Picks

Best Overall: Inogen One G3

portable oxygen

Inogen One G3

The Inogen One G3 is a great all-around option for portable oxygen therapy, weighing in under 5 pounds. The G3 has a pulse setting from one to five—a higher range than most pulse-flow POCs that max out at three—and is good for those looking for a very reliable option, with a battery that lasts up to eight hours. It also comes with a lifetime warranty.

Best Budget: Precision Medical EasyPulse PM4150

portable oxygen

Courtesy of Vitality Medical

This pulse-flow POC costs less than half of many competitors and only has one filter, which makes for easy cleaning. The EasyPulse PM4150 has a battery that can last over three hours at setting two and it comes with a car adapter if you need to charge on-the-go.

The 6.8-pound concentrator is also highly efficient, as the oxygen volume adjusts automatically to breath rate, maintaining minute volume and never giving more than what’s needed.

Best Small: AirSep Focus

AirSep Focus

 Courtesy of Oxygen Concentrator Store

By far, the AirSep Focus is the smallest portable concentrator available, weighing 1.75 pounds and standing at 4.8 inches wide and 6.4 inches tall. It can last for three hours on one charge and it’s best to carry around another set of batteries if you plan on being out for longer, as it takes four hours to charge.

You can take it anywhere—it runs at a quiet hum of 41 decibels, about as loud as a computer or babbling brook.

Best Battery Operated: Lifechoice ActivOx Pro 4L

portable oxygen

Lifechoice ActivOx

Lasting up to 10 hours and 15 minutes, this pulse-flow POC is built for the long-haul. It weighs under five pounds and is barely louder than birds chirping (around 44 decibels) on its highest setting.

The control panel is easy to read and operate and has an alarm setting that notifies users about low battery, oxygen purity, high temperature, and if a reset is needed.

Best Continuous Flow: Respironics SimplyGo

portable oxygen

Courtesy of Respshop

The Respironics SimplyGo has a continuous flow up to 54 minutes and comes with two rechargeable batteries, so you can always have a charge going while your POC is in use. At 10 lbs and less than 12 inches wide and tall, it is one of the smallest POCs with continuous flow.

Best Pulse Flow: Respironics EverGo


Courtesy of Oxygen Concentrator Store

Though weighing on the heavier side for a pulse-flow POC at 9.9 pounds, the Respironics EverGo comes with a wheeled travel cart for easy moving. It has a pulse-flow setting up to six—just above the average range of competitors—and has up to eight hours of battery life. A touch screen makes navigating easy, with a lining to protect against smudges and scratches.

Best Lightweight: CAIRE Freestyle Comfort

portable oxygen


The CAIRE Freestyle Comfort lasts up to eight hours despite its petite stature (less than five pounds). The pulse-flow POC runs at a quiet 43 decibels, making it discreet enough for a library.

In addition, the CAIRE Freestyle Comfort automatically adjusts to your respiratory rate, providing whatever you need whether you’re exercising or sleeping.

Best Multi-System Delivery: iGo Portable Oxygen Concentrator System

Portable oxygen


Have the option of continuous-flow or pulse-flow oxygen therapy delivery without sacrificing mobility with this lightweight POC. The iGo can be used with 50-foot cannulas for continuous or 35-foot cannulas for pulse dose mode.

The battery of this oxygen concentrator can last up to 5.4 hours on one charge, and it takes less than half that time (two hours) to recharge. For its 15-inch height, it lets out a quiet 40-decibel hum.

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