For the estimated 1 billion people worldwide living with sleep apnea, a CPAP or BiPAP machine is essential — including on vacation. The good news for international travelers: virtually all modern CPAP machines are designed with global travel in mind. Most are dual voltage, compact, and airline-approved. With the right preparation, using your CPAP anywhere in the world is straightforward. This guide covers everything you need to know.

Is My CPAP Machine Dual Voltage?

Most modern CPAP and BiPAP machines — from ResMed, Philips Respironics, Fisher & Paykel, and DeVilbiss — are dual voltage rated 100–240V at 50/60Hz. This means they work automatically in any country worldwide with only a plug adapter for the local socket. No voltage converter needed.

To confirm your machine's voltage rating, check the power supply label (often on the underside of the machine or on the external power brick). Look for "INPUT: 100–240V". If you see only "120V" or "110–120V", your machine is single-voltage and requires a step-up/step-down converter for use in 220–240V countries like Europe, the UK, and Australia.

How to check in 10 seconds: Look at the bottom or back of your CPAP machine or its power supply. If the label reads "100–240V", it's dual voltage and works anywhere with just a plug adapter. If it reads "120V only", you need a converter for international use.

Popular CPAP Models: Voltage Reference

ResMed AirSense 11
100–240V ✓ Dual Voltage
Works worldwide with plug adapter only. One of the most travel-friendly full-featured CPAPs.
ResMed AirMini
100–240V ✓ Dual Voltage
Purpose-built travel CPAP. World's smallest CPAP at 300g. Built-in travel bag.
ResMed AirSense 10
100–240V ✓ Dual Voltage
Older but still widely used. Dual voltage confirmed on power supply label.
Philips DreamStation 2
100–240V ✓ Dual Voltage
Compact design. Dual voltage. Check for travel-specific power cord in the box.
Transcend Mini CPAP
100–240V ✓ Dual Voltage
Ultra-portable. Designed for camping and travel. DC cable option for car charging.
Fisher & Paykel SleepStyle
100–240V ✓ Dual Voltage
All SleepStyle series are dual voltage. Verify specific model label.

Humidifier water internationally: Do not use tap water in your CPAP humidifier abroad. Use bottled distilled water, or order distilled water at your accommodation. Tap water mineral content can damage the humidifier. Alternatively, disable the humidifier while traveling — most CPAP users adapt without it for short trips.

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Airlines and CPAP: What to Know

CPAP machines have special status with most airlines:

Powering Your CPAP Off-Grid: Camping & Remote Travel

For camping trips, liveaboard boats, remote lodges, or any situation without standard wall power, a CPAP battery pack is essential:

CPAP Travel Checklist

Before You Leave: CPAP Travel Checklist
Verify dual voltage — Check your machine's power label for "100–240V". If single-voltage, arrange a converter.
Get the right plug adapter — Use our voltage checker to confirm the adapter type for your destination.
Pack distilled water or plan to buy — Do not use tap water in humidifier internationally.
Notify airline in advance — Confirm extra carry-on allowance and in-flight use policy for your route.
Pack a doctor's letter — A letter confirming medical necessity smooths airport security and airline questions in some countries.
Carry spare filters and mask — Replacement parts are difficult to source internationally on short notice.
Battery pack for off-grid nights — If camping, on a cruise without AC in the cabin, or staying in remote accommodation.

For full plug type and voltage information for your destination, use our interactive voltage checker. If you're also traveling with a laptop or phone and want to simplify your charging kit, see our USB-C travel charging guide. For general device compatibility, see our electronics compatibility guide.

Frequently Asked Questions

Most modern CPAP machines are dual voltage (100–240V). Check your power supply label — if it says 100–240V, you need only a plug adapter. If it says 120V only, you need a step-up/step-down converter for 220–240V countries.
Yes — CPAP machines are classified as medical devices by most airlines and permitted as an additional carry-on, separate from your regular allowance, on most carriers. Always carry it in the cabin — never check it. Confirm with your airline before flying.
Many airlines permit in-flight CPAP use on long-haul routes. You may need to notify the airline in advance. Not all aircraft have accessible seat power — a CPAP battery pack is the most reliable solution for in-flight use.
CPAP-specific battery packs (Medistrom Pilot-24, Freedom TravelPAP, ResMed Power Station II) are designed for overnight use. General portable power stations (Jackery, EcoFlow) with AC outlets also work for multiple nights. Disable the humidifier to extend battery life by 30–50%.
The ResMed AirMini and the Transcend Mini CPAP are the leading purpose-built travel models — compact, lightweight, and dual voltage. The ResMed AirSense 10 and 11 are also popular travel choices. All are dual voltage and airline-approved.