Inogen One G4 Portable Oxygen Concentrator (Front-Side View)Inogen One G4 Portable Oxygen Concentrator (Front View)Woman with Inogen One G4 at Grocery StoreInogen One G4 Portable Oxygen Concentrator Next to Coffee Mug
Inogen One G4 Portable Oxygen Concentrator

G4 Three-Year Warranty System

$2,495 $2,295
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.

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 or Double Battery up to 5 hours @ Flow Setting 1
Sound Level:
40 dBA @ Flow Setting 2
Inogen Connect:
Bluetooth Mobile App
What's Included
Technical Specifications
  • Inogen One G4 AC Power Supply
    AC Power Supply
    AC power supply for the Inogen One G4
  • Inogen One G3 and G4 DC Power Cable
    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.
  • Inogen One G4 Carry Strap
    G4 Carry Strap
    Easily carry your Inogen One G4 with this shoulder strap.
  • Inogen One G4 Carry Bag Without Straps
    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 @ flow setting 1 -or-

Duration (double battery): up to 5 hours @ flow setting 1

Noise Level

40 dBA @ flow setting 2


Concentrator: 3 Years

Concentrator Sieve Beds and Accessories: 1 year

See Limited Warranty Statement for details.


Designed for stationary, portable, and travel


Additional Accessories

External Battery Charger (G4)


Inogen One G4 Battery Charger
External Battery Charger (G4)


More Details   

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