InogenOne G3 Portable Oxygen Concentrator (comes with extra battery, carry case, charger and a canula/tubing set)
The Inogen One G3 portable oxygen concentrator is a pulse dose unit that has 1-5 oxygen delivery settings.
The Inogen One G3 is just 4.9 pounds and only 7.25 inches tall. The Inogen One G3 runs on both AC and DC power supplies so that you can charge the unit’s battery on the road. The G3 comes with one 8-cell battery capable of running for up to 5 hours on setting 1. The 8-cell battery can be charged both while in use and while not in use and will recharge fully in about 4 hours when not in use.