Inogen One G4 (4 Cell)



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Portable oxygen concentrator sales require a medical oxygen prescription from a GP or specialist prior to shipment. Please add this item to your cart below and upload your prescription. At the time of your delivery or appointment, an orientation and safety checklist will be completed.

Please upload an image of the prescription provided by your doctor as it's mandatory to buy this product.


If unsure whether this device is suitable for you, please consult your oxygen therapy prescriber first.

Use our POC quiz as a guide to find out which POC is right for you* POC QUIZ   *this is a guide only and you should consult your oxygen therapy provider. 

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



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