Inogen One G4 Portable Oxygen ConcentratorInogen One G4Inogen One G4Inogen One G4
Inogen One G4 Portable Oxygen Concentrator

G4 Three-Year Warranty System

3-year warranty

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 meets FAA requirements.

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

Click “Add to Cart” to order your Inogen One G4 today and reclaim YOUR freedom!

Scroll below to see the listed accessories included in the Inogen One System. 

*Inogen Systems require a qualifying RX prior to shipment. Once you place an order an Inogen Oxygen Specialist will follow up with you to help you gather your RX information.
30 Day Risk-Free Trial and Free Shipping offers apply to purchases only.

compare to G3  
Weight Weight: 2.8 Pounds
Flow Settings Flow Settings: 1 - 3
Dimensions Dimensions:
Height: 7.2 IN.
Length: 5.91 IN.
Width: 2.68 IN.
Battery Duration Battery Duration: Single Battery: Up to 2.7 hours, Double Battery: up to 5 hours
What's Included
Technical Specifications
  • Inogen One G4 AC Power Supply
    AC Power Supply
    AC power supply for the Inogen One G4
  • G3 DC Power Pack
    DC Power Cable
    DC Power Cable for the Inogen One G4
  • Inogen One G4 Single Battery
    G4 Single Battery
    Battery duration up to 2.7 hours.
  • G4 Carry Strap
    G4 Carry Strap
    Easily carry your Inogen One G4 with this shoulder strap.
  • G4 Carry Bag with No Loops
    G4 Bag
    The G4 bag provides a protective covering for your Inogen One G4.

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

Compare to G3 Product Specifications  

Other G4 Systems Packages

Inogen One G4 Lady in Red Image
G4 Freedom Package 2
Lifetime warranty

Includes the Inogen One G4 Freedom Package 2 with a lifetime warranty.

more details  
Inogen One G4 Lady in Red Image
G4 Freedom Package 1
Lifetime warranty

Includes the Inogen One G4 Freedom Package 1 with a lifetime warranty.

more details  

Additional Accessories

G4 Double Battery


G4 Double Battery


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External Battery Charger (G4)


External Battery Charger (G4)


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