Flying abroad? Check voltage. The U.S. runs on 110V, but Europe is like “here’s 220V, sucker.” Most modern CPAPs are dual voltage—look for a little “100-240V” on the back. If you see that, you’re golden. If not, your machine will explode. Dramatically. (It won’t, but it might smoke).
A Complete Guide to Flying with a CPAP Machine | Transcend
Also, some countries are weird about medical devices. Japan? Fine. France? Ooh la la, paperwork. Carry a doctor’s note translated into the local language. It’s overkill, but it’s funny to watch customs squint at it.
And don’t forget distilled water for the humidifier. Tap water in a foreign country? Your machine might grow a beard of minerals. Buy a small bottle at your destination, or pack water purification tablets (now you’re a survivalist).
