The Inogen One G4 is extremely quiet (40 dBA at flow setting 2) and features 3 pulse dose settings. This Concentrator includes a rechargeable battery and two power supply cords; AC & DC. The unit can operate while connected to either power source. The AC power cord can be plugged into any wall outlet and the DC power cord allows you to use the device in the car, on a boat, or in a recreational vehicle. The single battery holds a charge for up to 2.7 hours and the double battery holds a charge up to 5 hours.
This Portable Oxygen Concentrator is designed with a easy-to-navigate interface with a simple LCD display. It is a low maintenance concentrator that is built to deliver oxygen therapy 24/7.