The Inogen One G3 (16-Cell) delivers the independence of a portable oxygen concentrator in one of the smallest, lightest, and quietest packages available to the oxygen user today.
The Inogen One G3 Lithium-ion battery doubles the life on your G3 concentrator. The Double Battery enables you to use your G3 machine with an extended battery life of up to 9 hours.
The new Inogen One G4 Portable Oxygen Concentrator offers all the freedom and independence of a portable oxygen concentrator and offers one of the quietest, most lightweight, and compact packages available on the market for the oxygen user. It provides the freedom and mobility for everyday errands, weekend trips with family, vacations, and much more.
The Inogen One G4 Double Battery gives you even more time to enjoy your freedom of mobility without having to stop and recharge your Inogen One G4. With the G4 8 cell Double Battery you can get up to 6 hours of mobile use.