SKU: S15324

Inogen One G4 Oxygen Concentrator

$6,199.99 $6,199.99

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Introducing the next innovation to portable oxygen delivery: the Inogen One G4, capable of full 24/7 oxygen delivery in an unbelievably small package!.

The Inogen One G4 is officially the smallest and lightest portable oxygen concentrator ever released by Inogen. Weighing in at 1.27kg with the single battery, the Inogen One G4 is more than 40% lighter than the Inogen One G3 and it’s about half the size! It even weighs less than some of the most commonly used portable oxygen tanks.



For such a small unit, the Inogen One G4 is incredibly powerful. It’s a pulse flow delivery system, which means it does not offer continuous flow, but it offers settings 1-3. It is equipped with Inogen’s standard Intelligent Delivery Technology to ensure the unit detects your breath to delivery your oxygen with incredible accuracy. The G4 is the smallest and lightest unit in its class, and you don’t sacrifice functionality or battery life for the small size.


  • Unbelievably Compact & Lightweight
  • Ultra-Quiet Operation
  • Intelligent Pulse Oxygen Delivery
  • Designed for 24 Hour Use


What Comes With The Inogen One G4?

  • Inogen One G4 Portable Oxygen Concentrator
  • Inogen 4 cell battery
  • AC Power Supply
  • DC Power Supply
  • Custom Carrying Case
  • Shoulder Strap
  • Tubing
  • Filter
  • Manual
  • 3-Year Warranty

Doctor’s prescription required for dispatch of any oxygen concentrator.




Additional information




Length: 15cm X Width: 6.8cm X Height: 18cm (includes single battery)

Flow Rate

Three flow settings 1, 2, 3 – Pulse dose delivery system


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


Duration (single battery): Up to 3 hours
Inogen G4 4 Cell Battery

Noise Level

40 dBA (at flow setting 2)


3 year warranty


Simple control functions


Designed for 24/7 use

Inogen One G4 Oxygen Concentrator User Manual

Inogen One G4 4 Cell Battery MSDS

Inogen One G4 8 Cell Battery MSDS

Talk to us on the phone

Our experienced phone sales team can assist you with any product enquiries and help you make a purchase directly on the phone. We are available anytime between 9am and 5pm, Monday to Friday.

are extra batteries availalable for the g4 and how much

Inogen G4 Double Battery – $695.99 – FREE express shipping

Inogen G4 Single Battery – $495.99 – FREE express shipping