CPAP on the Plane
The people who use CPAP machines know that there is occasional difficulty in getting the machine through security. This is moreso in an airport where the regulations are especially tough and differently enforced, depending on where you are and the equipment that they are using. But for CPAP and any other machines like respiratory machines, you should probably just treat it the same way that you would a laptop computer. You have to take the machine out of its case, but you don’t have to worry about pulling out all the accouterments, since that would slow things down too much and not give enough of a security improvement. So you pull out the machine itself, lay it on the conveyor belt and then lay the case next to it (not under it). This should get you through quickly enough. If they have a problem seeing it and such, you can just explain it to them and they can take it out of its case. After all, anything else in the case is likely to just be the tubes, facemask and a cord, etc. Nothing bad, nothing to get you in trouble, and then you’ll be on your way with that important piece of medical equipment in your bag.