CPAP on a plane: rules, batteries & airlines

Travelling with your CPAP on a plane: everything you need to know

Your CPAP therapy doesn't take holidays - and you shouldn't have to give it up either. Good news: travelling with a CPAP machine on a plane is entirely possible and even anticipated by international regulations. This guide explains the rules by airline, battery management, required documentation and which device to choose for travelling light.

CPAP as cabin baggage: it is legal and permitted

According to IATA (International Air Transport Association) guidelines and the American TSA (Transportation Security Administration), medical devices such as CPAP machines are permitted as cabin baggage and do not count towards your hand luggage allowance. Virtually all airlines follow this principle.

In practice, this means you can bring your regular travel backpack AND your CPAP bag into the cabin. The device will need to be removed during security screening (like a laptop) and will go through the scanner separately.

Keep your CPAP in a transparent or easily accessible bag to speed up the security check. Keep your prescription or medical certificate with you at all times.

Recommended documentation

  • Your medical prescription mentioning the CPAP device and your sleep apnea diagnosis
  • A letter from your doctor in English stating that you use a CPAP medical device and why
  • The device manual mentioning certifications (CE, FAA approval where applicable)

Rules by airline

Airline CPAP in cabin Additional baggage Documentation
Brussels Airlines Permitted, does not count against allowance Not required Prescription recommended
Ryanair Permitted as additional medical baggage Free (advance declaration advised) Medical certificate recommended
TUI fly Permitted in cabin Not required if declared Medical letter advised
Lufthansa Permitted, does not count against allowance Not required Prescription recommended
Air France / KLM Permitted in cabin Not required Medical certificate recommended
EasyJet Permitted in cabin Free with prior declaration Medical letter recommended

Practical tip: even though rules are generally favourable, always contact your airline at least 48 hours before departure to confirm the specific arrangements for your flight.

CPAP batteries on a plane: Wh limits

  • Under 100 Wh: permitted in cabin without restriction (most portable CPAP batteries)
  • Between 100 and 160 Wh: permitted in cabin with airline approval (maximum 2 batteries)
  • Over 160 Wh: prohibited on commercial aircraft
  • In hold luggage: lithium batteries are prohibited in the hold regardless of capacity
Check the Wh capacity printed on your battery. Most travel-compatible CPAP batteries are under 100 Wh and pass through cabin security without issue.

Using onboard power during the flight

Some long-haul aircraft offer seat power outlets. Check with the airline whether you can use your CPAP on board. The ResMed AirMini is FAA-certified and can be used in flight on many routes. Make sure you have a universal adapter.

The AirMini: the ideal CPAP for travel

If you travel frequently, the ResMed AirMini AutoSet is the ultimate travel CPAP:

  • Weight: only 300 g - the lightest on the market
  • Compact dimensions: fits in any backpack
  • FAA-certified: approved for in-flight use
  • Compatible with most ResMed AirFit masks
  • myAir app to track your nightly data
  • Integrated HumidX humidifier for waterless travel

Practical tips for travelling with your CPAP

  • Photograph your prescription and store it on your phone
  • Bring a universal power adapter (most CPAPs support 100-240 V)
  • Note your device serial number in case of loss
  • Store tubes and masks in a sealed bag
  • Contact the airline in advance for long-haul flights if you wish to use the device on board
  • Plan for distilled water at your destination if your humidifier requires it

Travel CPAP devices at VivaRespire

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