Originally Posted by
NoStressHere
Since it is a medical device, you can carry it separate and not count as a normal carryon.
Personally, it is small enough to go into my normal roll aboard. I do remove the water tank and leave it at home. I put the hose in the top part of the roll-on bag to keep it flat. Just not worth having an extra bag to deal with.
You do not have to ever "declare" it just because it is a cpap.
Thanks for getting back to me. On some other airlines, they do ask you to declare it whether you use it or not (at least that was how I was advised). As it isn't a big hassle, I've done so unless I don't carry it with me (depends on where I'm going). I do carry both components (I'm using an older Resmed model... S9). I wouldn't use it on the plane, but for certain destinations, I'd feel more comfortable having it (using it or not).