a CPAP is the machine you use at night if you have sleep apnea. Someone told my husband while they were checking his, that it looks just like a bomb going through the xray machine.....
They do the same test on those as they do on nebulizers. Its an explosives test.
My familliy is fun to travel with. We travel with a CPAP, a regular nebulizer, a portable nebulizer and a carry on suitcase that is at least half full of meds inluding 6 different lotions/creams and 3 liquids. I hate travelling...lol