Inogen One G4

Excellent education program delivered to your staff to help them troubleshoot devices independently

The Inogen One G4 is designed for 24h use! The pulse dose delivery system is energy efficient and completely portable at just 1.3 kg including the battery.

The Inogen One G4 is officially the smallest and lightest portable oxygen concentrator ever released by Inogen. Weighing less than 1.3 kg with the single battery, the Inogen One G4 is more than 40% lighter than the Inogen One G3 and it is about half the size. It even weighs less than some of the most commonly used portable oxygen cylinders.

It is a pulse flow delivery system, which means it does not offer continuous flow, but it offers settings 1–3. It is equipped with Inogen standard ‘Intelligent Delivery Technology’ to ensure the unit detects your breath to delivery oxygen with incredible accuracy.


  • G4 POC
  • 4 Cell OR 8 Cell Battery
  • AC Power Supply
  • DC Power Cable
  • Carry Bag
  • Warranty: 3 years POC, 1 year sieve bed, 90 days battery


Smallest, most recent POC from Inogen
Compact & lightweight
Ultra-quiet operation
Intelligent pulse oxygen delivery
Designed for 24-h use
External battery is easy to remove
LCD display and simple control functions
Easy sieve bed replacement
Max volume O2/min576mL^
Flow settingsSettings 1 - 3 pulse flow
POC run time2 hrs 40 mins (with single battery - 4 cell system) 5 hrs (with double battery - 8 cell system)
Level (dBA)40*
*Sound level based on in-house testing performed by Air Liquide Healthcare ^calculated at 20 breaths per min at setting of 2

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