Product Specification Comparison

 G2 Inogen One G3 portable oxygen concentrator inogen one g4 portable oxygen concentrator
Inogen One G2 Inogen One G3 Inogen One G4
Weight 7 Pounds 4.8 Pounds  2.8 Pounds
Dimension Length : 10.7 IN.
Width: 3.9 IN.
Height: 9.5 IN.
Length : 8.75 IN.
Width: 3.0 IN.
Height: 8.25 IN.
Length: 5.91 IN.
Width: 2.68 IN.
Height: 7.2 IN.
FlowSettings 1 – 6 1 – 5  1 – 3
BatteryDuration Single Battery up to 5 hours,
Double Battery up to 10 hours
Single Battery up to 4.5 hours,
Double Battery up to 9 hours
Single Battery up to 2.7 hours,
Double Battery up to 5 hours
Noise Level < 38 dBA* 39 dBA*  40 dBA*
Both Systems Power Sensing
AC Power Supply 100-240V, 50-60Hz (auto sensing to allow worldwide use)DC Power: for mobile use
Operation

Simple control functions and easy-to-read LCD display
Use

Designed for stationary, portable, and travel

*On Setting 2