Inogen One G4 Portable Oxygen Concentrator

SKU: IS-400 Category: Tag: Brand:

The G4 is Inogen’s most lightweight option, weighing in at only 2.8 lbs!


  1. 16 Cell Double Battery
  2. 8 Cell Double Battery


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The Inogen One G4 Portable Oxygen Concentrator is the smallest portable oxygen machine from the popular brand, Inogen. The G4 Oxygen Concentrator is able to provide you with oxygen from an incredibly quiet & small package. With oxygen flow settings from 1-3, the Inogen One G4 is capable of increasing your independence & freedom day & night.


Inogen One portable oxygen concentrators have long been praised for being some of the quietest machines on the market. The G4 continues this tradition and adds in some amazing new benefits, like dropping 40% in size from previous models! At merely 2.8lbs this machine is easy to transport, so you can stay on the go!


Small enough to rest on your lap during a movie or car ride, light enough to accompany you on an outdoor adventure or trip to the store, the G4 is a wonderful oxygen companion for those on the go. Available in Single and Double Battery Bundles, the G4 is one of the smallest, lightest, and quietest portable concentrators on the market. Single batteries can provide up to 2.7 hours of use, and Double Batteries offer a remarkable 5 hours. Comparable in size to a small purse or shoulder bag, this portable concentrator is discreet and tastefully designed.

  • Lightweight oxygen concentrator weighs 2.8 pounds (battery included)
  • Compact size and lightweight design offer convenient portability with shoulder satchel
  • Delivers supplemental oxygen in three flow settings (1, 2, 3)
  • Breath Detection Alert Mode creates audible and visual alerts when breathing undetected for more than 60 seconds
  • Easy-to-read LCD user interface
  • Lithium-ion battery pack delivers up to five hours of cordless oxygen delivery
  • Portable DC charger for use with supplemental power supplies, like an automotive 12V plug
  • AC power supply adapts to variations in domestic and international voltages between 100-200V
  • FAA-approved for in-flight use


Warranty (Machine):          3 years
Power Supply:                   AC or DC
Measurements:                 8.75 L x 3.0 W x 8.25 H
16-Cell Battery runtime:    Up to 9 hours
Weight:                              4.8 lbs.

FREE GIFT WITH PURCHASE!!! For a limited time, get ONE WHOLE YEAR of FREE oxygen cannulas AND a FREE PULSE OXIMETER when you purchase this concentrator! Hurry, this offer only available while supplies last!

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