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The Highest O2 Output by weight of any POC on the Market!

Inogen G4 Portable Oxygen Concentrator

Portable Oxygen Concentrator


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The Inogen One G4 offers the highest oxygen output per pound of weight of any portable concentrator available in the United States. This incredibly small and lightweight POC delivers the independence that active oxygen patients desire.

With flow settings from 1-3, the Inogen One G4 is designed to provide Freedom to go about your daily activities from gardening, to shopping, to traveling. 

With up to 5 hours of battery life*, the Inogen G4 is truly about life on the go.  And at less than 3lbs, you can throw it over your shoulder, tuck it in a bag, or wear it on your belt.  

Whether at home or on the go, the included AC Power Supply and DC Power Supply make charging a breeze.  

The Inogen G4 is available with a 3 year warranty or upgrade to a 5 Year or Lifetime warranty for extended coverage.  Customize your Inogen with our large selection of branded accessories.

The Inogen One® G4 - Oxygen. Anytime. Anywhere. 



  • System Includes:
  • Inogen One G4 POC
  • AC Power Supply (Wall Charger)
  • DC Power Supply (Car Charger)
  • Carry Bag
  • (1) Lithium Ion Battery
  • Product Warranty Support
  • Free, fast shipping

  • O2 Delivery : Pulse
  • Settings : 1-3
  • Weight : 2.8 lbs (4 cell) 3.6 lbs (8 cell)
  • Sound (on setting of 2) : 40 dBA
  • Battery Avg (on setting of 2) : 2.7 hrs (4 cell) 5.0hrs (8 cell)
  • Max Flow Output : 630 ml/min
  • FAA Approved : Yes
  • Battery Weight : .62 lbs (4 cell) 1.12 lbs (8 cell)
  • Standard Warranty : 3 yrs on POC/1 yr on Battery/1 yr on Accessories
  • Intelligent Delivery Technology offering Pulse Dose with flow settings of 1-3
  • 2.8 lbs with 4 cell battery / 3.6 lbs with 8 cell battery
  • The highest O2 output by weight of any POC on the market
  • Can be used 24/7 for an All-In-One solution
  • Average Battery duration up to 2.7 hrswith 4 cell battery or up to 5 hrs with 8 cell battery (pulse setting of 2)
  • Simple control functions and easy-to-ready LCD display
  • FAA Approved for airline travel
  • Can be carried in the hand, over the shoulder, or on your belt
  • Attractive and quiet device is discreet and effective
  • Easily swap out batteries to extend operation
  • 3 year limited warranty (see product specs for details)
  • Accessories Available:

  • External Battery Charger
  • 4 Cell Single Battery
  • 8 Cell Double Battery
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