Can I use the Inogen One G3 concentrator on an airplane?

Yes, the Inogen One G3 conforms to all applicable FAA requirements for portable oxygen carriage and use on board aircraft. Bring enough charged batteries with you to power your Inogen One G3 for no less than 1.5 times the expected duration of your flight, ground time before and after the flight, security screenings, connections, and a conservative estimate for unanticipated delays. (Example: a 3-hour flight needs fully charged batteries with 4.5 hours of run time)