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Travel with your CPAP
A packing checklist, what to expect at airport security, batteries that can fly, and the plug you'll need.
Packing checklist
- Machine, power supply and power cord
- Mask, with a spare cushion or pillows
- Tubing (a short or travel tube saves space)
- Water chamber, emptied and dry
- Spare filters
- Plug adapter for where you're going
- Extension cord: hotel sockets are often far from the bed
- Battery and its cable, if you'll be away from power or want to use it on the plane
- A copy of your prescription and the machine's serial number
- Your SD card, if you'll want to check your nights
At the airport
Pack your CPAP in your carry-on, never in checked bags, so it can't be lost or damaged. In the US, airlines must not count it toward your carry-on limit as long as it fits in the bin or under the seat. Rules elsewhere vary, so check with your airline.
At US security, take the machine out of its case for the X-ray. The mask and tube can stay in the case. You can bring a clear plastic bag to put the machine in while it's screened. Empty the water chamber before you go.
Using it on the plane
Most airlines let you use a CPAP in flight, but ask them at least 48 hours ahead: many want to know in advance, and some ask you to run it on battery because seat power isn't guaranteed. Bring enough battery for the whole flight with some to spare, and turn off the humidifier.
Batteries and the battery calculator
1. Can my battery fly?
Look on the battery's label for watt-hours (Wh). If it only shows mAh and volts, enter them here.
2. How many nights will it last?
0.8 nights, roughly
Up to 100 Wh: allowed in your carry-on without airline approval. Never in checked bags.
The draw depends on your machine and pressure, and the heated humidifier and heated tube can use several times more. Turn them off on battery. Your battery maker's chart for your machine is the best guide; use this to compare.
Power and water abroad
Most CPAP power supplies work on 100 to 240 volts, so you only need a plug adapter, not a voltage converter. Check the label on your power brick: if it says 100-240V, you're set. Use distilled water in the chamber if you can find it; if you can't, check your machine's manual for what it allows.
| Where | Plug type |
|---|---|
| United States, Canada | A, B |
| United Kingdom, Ireland | G |
| UAE, Qatar, Bahrain, Kuwait, Oman | G |
| Saudi Arabia | G (older buildings: A, B) |
| Most of Europe | C, F (France and Belgium: E) |
| Australia, New Zealand | I |
| India | C, D, M |
| Singapore, Hong Kong | G |
Need travel gear?
Travel tubes, batteries, adapters and spare cushions are in stock at CPAP Stores.
Sources
- TSA: carrying a CPAP machine on a plane
- 14 CFR 382.121: assistive devices don't count toward carry-on limits (US airlines)
- FAA PackSafe: spare lithium batteries
- TSA: lithium batteries over 100 watt-hours
General information, checked November 2026. Airline and country rules change, so confirm with your airline before you fly.