You can use the AP device during flights with commercial airplanes (with a pressurized cabin) when the next points are taken into account:  The AP and the transmitters must not be exposed to the radiation from the metal detection port or the bagage scanner. You must indicate to the customs staff that you wish to be frisked. During ascending and descending of the aircraft it is advsed to check the infusion sets for air bubble formation. When this occurs it can be solved by flushing the tube.