bicker said:
Note that Southwest won't even let you fly with FAA approved O2 equipment.
Actually they do, read the following from their website. But they do not provide any.
Portable Oxygen Concentrators
Effective for travel on or after January 3, 2006, Southwest Airlines will allow Customers to bring onboard and use certain models of the AirSep LifeStyle and Inogen One Portable Oxygen Concentrator (POC) devices during all phases of flight and in accordance with Special Federal Aviation Regulation (SFAR) No. 106, 14 CFR Part 121.
AirSep LifeStyle and Inogen One POC Conditions that Must Be Met:
* The POC may only be used in its battery-operated mode. Southwest Airlines does not have electrical outlets onboard for commercial product use.
* To be used onboard the aircraft, the AirSep LifeStyle or Inogen One POC must have a label attached indicating that it has been approved for use in aircraft.
* The Customer must have a sufficient number of fully charged batteries to cover the duration of the flight and anticipated delays, plus one extra battery for unanticipated delays. Extra batteries must be packaged for carryon in a manner to prevent short circuit. Battery terminals must either be recessed or packaged so as to prevent contact with metal objects, including terminals of other batteries.
* The Customer must have a letter from his/her physician on letterhead with an issue-date of no more than one year prior to flight departure date. The physicians letter must state:
* whether the user is able to operate the device and recognize and respond appropriately to its alarms, and if not, that the user is traveling with a companion who is able to perform these functions
* the phases of the flight (taxi, takeoff, cruise, landing) during which use of the device is medically necessary, and
* the maximum flow rate corresponding to the pressure in the cabin under normal operating conditions. (Cabins are pressurized to an altitude of 8,000 feet.)