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Inogen One G4 System

Inogen One G4 Portable Oxygen Concentrator Systems & Accessories


Introducing the next innovation to portable oxygen delivery: the Inogen One G4, capable of full 24/7 oxygen delivery in an unbelievably small package! Offering 1-3 flow settings, the Inogen One G4 is one of the smallest, lightest and quietest units available to the oxygen user today.


System Includes:

  • One single battery
  • Concentrator
  • Standard 3-year warranty
  • AC/DC power supplies
  • Carry bag, user manual
  • Meets FAA requirements
  • Intelligent Delivery Technology®
  • Bluetooth System
  • Inogen Connect App


G4 Portable Oxygen Concentrator Specifications

Weight 2.8 lbs

Dimensions 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    

Inogen One G4 System

SKU: IS-400-NA
$2,695.00 Regular Price
$2,395.00Sale Price

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