Never had a problem carrying my CPAP machine onboard as a free part of cabin luggage. But using it in flight is a problem on an Aer Lingus transatlantic flight.
I was very surprised having paid the full $4K Business Class fare from YYZ to DUB on Aer Lingus last year that they would not allow me to use my CPAP machine while I slept on the overnight flight to Dublin. The cabin crew were very apologetic, and very gracious and checked with the captain but they said no. BA has no problem with the use of CPAP machines on transatlantic flights, and since BA and EI are all now part of AIG I don't understand this disjointed policy. Apparently I might be able to use my CPAP if I power it with a battery - but that's very expensive to buy!
Anyone else have this experience?
Found this on the Aer Lingus website-
-- https://www.aerlingus.com/travel-information/special-assistance/medical-conditions/
You have to scroll down a ways to get to C-pap machines, but dependent on a variety of details, c-pap use is permitted. Suggest you contact them to discuss your situation to preclude a repeat of you denied usage.
I too am on a CPAP machine, however I don't use one on an airplane. There are very, very few people that cannot get through a 9 hour flight without being on the machine.
I used to travel with a friend who used a CPAP. It was rather noisy as I remember. If the devices are still noisy, maybe that is why you were asked (told) in deference to the other passengers, not to use it on the plane.