Inogen One G4

The smallest portable oxygen concentrator

Inogen One G4 is the smallest and lightest portable option. It is the ideal solution when weight and size are more important than battery life and oxygen content.

1-3 settings

With 3 settings, representing an equivalent of 1 to 3 liters a minute, this little device fits most people’s needs!

Lightweight and long battery life

With the single battery, for up to 2.5 hours of autonomy, the weight is only 1.28 kg! With the dual battery, for up to 5 hours of autonomy, the weight is still no more than 1.5 kg.

Inogen One G4

The small portable oxygen concentrator

A breakthrough in portable oxygen

The Inogen One G4 is a breakthrough in portability; only 1.28kg and so small you can carry it on a belt.

The operation is as you are used to From Inogen’s portable oxygen concentrators. Logical, simple, and apt.

The Inogen One G4 is a Pulse flow system, just like all of Inogen’s portable devices. With 3 settings a powerful device, suitable for most people who use portable oxygen concentrators.

The G4 is your ideal travel companion.

Inogen G4 oxygen concentrator specifications



8.2 kg



1.28 kg with single battery and only 1.5 kg with double battery



Height: 15 cm, width 6, 8 cm and length 18, 3 cm


Noise level

40 dBA *


Flow settings

3 Pulse flow settings, adjustable from 1 to 3


Battery life

Single battery up to 2.5 hours *

Dual battery up to 5 hours *

* In setting 1

Conec Care

Conec Care is an official distributor of Inogen. We rent and sell Inogen throughout Europe and through our sister companies also in Kenya and South America. You can visit us upon request, but we are happy to come to you for a demo.

Call us at + 31 85 48 99 400 for an appointment or for more information.