Reference: Regulation (EU) No 965/2012 on Air Operations, Annex IV (Part CAT); Regulation (EC) No 1107/2006 on the right of disabled persons and persons with reduced mobility when travelling by air
Portable air concentrators (POC) do not contain oxygen as such; they only concentrate the oxygen in the surrounding area. Therefore they should not be confused with oxygen bottles/cylinders. Under the European regulations, POCs do not have to be approved to be carried and used on board.
As POCs contain batteries, they fall under the definition of portable electronic devices (PEDs).
In accordance with the European regulations (AMC1 CAT.GEN.MPA.140 (b)(2)(i)), medical equipment necessary to support physiological functions (i.e. POCs) does not need to be switched-off during any phases of the flight.
Regulation (EC) No 1107/2006 establishes the rights of disabled persons and persons with reduced mobility when travelling by air. Article 4(3) of this Regulation requires an air carrier or its agent to make publicly available the safety requirements and relevant information on restrictions. For more information on Regulation (EC) No 1107/2006, please refer to the Commission's interpretative guidelines on this regulation from 11.06.2012, which has been published on the Commission's website and can be accessed using this link.
If passengers have special needs, they should request more information from the airline at the time of booking.