Inogen One G4 Portable Concentrator


The Inogen One G4 delivers the independence of a portable oxygen concentrator in one of the smallest, lightest, and quietest packages available to the oxygen user today.

With the Inogen One you can jump in the car to run errands, take a weekend trip to see family, or even take it on vacation!

The Inogen One G4 is one solution for oxygen at home, away, and for travel, 24/7. It’s oxygen therapy on your terms.




2.8 lbs

5.91 × 2.68 × 7.2 in (Height includes single battery)

Oxygen Flow
Intelligent Delivery Technology
Three flow settings from 1-3

Power Settings
AC Power Supply 100-240V, 50-60Hz
(auto sensing to allow worldwide use)
DC Power: for mobile use in car/airplane

Duration (single battery): up to 2.7 hours
Duration (double battery): up to 5 hours

Noise Level
40 dBA*

Concentrator: 3 Years
Concentrator Sieve Beds and Accessories: 1 year
See Limited Warranty Statement for details.

Designed for stationary, portable, and travel

*On Setting 2 

Included with this system:

  • AC power supply for the Inogen One G4
  • DC Power Cable
  • G4 Single Battery (duration up to 2.7 hours)
  • Carry strap
  • G4 protective covering bag


Additional information

Weight 0.0000000 lbs
Dimensions 0.0000000 × 0.0000000 × 0.0000000 in
Battery Option

Double (8 cell), Standard (4 cell)


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