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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.
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
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
- ResMed AirMini AutoSet - the ultra-compact travel CPAP
- ResMed AirSense 11 AutoSet - compact for occasional travel
- Philips DreamStation 2 - travel-friendly format with integrated handle
Frequently asked questions about CPAP on planes
Yes, with conditions. To use your CPAP in flight, you need an FAA-approved device (label on the case) and an external battery as seat power is not always reliable. You must also notify the airline at least 48 hours in advance. Most patients do not use their CPAP on short flights (under 4 hours) and reserve it for overnight long-haul flights. Keep your prescription with you.
No, in most cases. Under IATA and TSA guidelines, medical devices like CPAP are allowed in the cabin and do not count against your hand luggage allowance. You can therefore carry your usual backpack AND your CPAP bag. The device will be removed separately at security, like a laptop. Ryanair sometimes requires advance declaration.
Not strictly mandatory but strongly recommended. Carry your CPAP prescription and a medical letter in English stating that you are treated for sleep apnea and use a CPAP device. These documents speed up security checks, prevent questions in case of device failure and are sometimes required by airlines to validate in-flight use.
All major airlines accept CPAP as cabin baggage. Brussels Airlines, Lufthansa, Air France and KLM allow the device without quota. Ryanair accepts it as additional medical baggage with advance declaration. TUI fly requires a medical letter. To use the CPAP in flight, also check FAA-approved compatibility of your model and the airline's battery policy.
Yes, under strict conditions. Lithium-ion CPAP batteries are allowed only in the cabin, never in the hold. The standard IATA limit is 100 Wh per battery without declaration and up to 160 Wh with prior airline approval. The ResMed AirMini official battery is 70 Wh, so compatible. Always check the Wh capacity on the battery and declare it at booking to avoid check-in issues.
Never place your CPAP in the hold if you can avoid it. If you absolutely must (for example, a non-FAA-approved device on a flight where the cabin is full), use its original rigid carry case, drain humidifier water and pack everything in a hard-shell suitcase with shock-absorbing foam. CPAP devices are fragile: turbine, touchscreen and sensors do not withstand drops. The cabin remains the safest option.
Recommended for all flights, mandatory to use CPAP during the flight or for batteries above 100 Wh. Contact the airline's medical service at least 48 hours before departure, ideally at booking. Specify CPAP model, battery Wh rating and your need for in-flight use. The airline may request a MEDIF form completed by your doctor for long-haul flights.