IF you have sleep apnea and can't keep a mask on
I totally agree with Lisa. It is awful when I do not have mine.
I used to check my C-Pap with my baggage when I flew back East to visit because I didn't want to have to heft it through the airport. Can you say stoopid?
I sure learned what a BAD idea that was! Of course my luggage was mis-routed. Until my C-PAP arrived, I had to try sleeping in a recliner and woke each morning with a headache and a sore throat from the snoring. Unfortunately, the doc who had prescribed my c-pap would not OK my order to a local company for a temp rental, because I had not seen him w/in a year. So he'd rather have me die than phone in an Rx? Idiot.
Needless to say (1) I always take the c-pap as a carry on when I fly and (2) I have a new sleep doc who gives my an Rx for my wallet for just such a situation.