Do you need a letter to fly with CPAP?

Most security screeners are likely to be familiar with CPAP machines and similar medical devices. However, if you are traveling to a part of the world that may be less familiar with them, you may wish to carry a letter from your healthcare provider briefly explaining its purpose and your medical need.



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If you bring the water through airport security, they will open and test it for explosives. You may also want to include a letter from your doctor or a copy of your prescription for the CPAP machine, but in most cases, you won't need to show it.

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A nebulizer, CPAP, BiPAP and APAP must be removed from its carrying case and undergo X-ray screening. Facemasks and tubing may remain in the case.

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If you bring the water through airport security, they will open and test it for explosives. You may also want to include a letter from your doctor or a copy of your prescription for the CPAP machine, but in most cases, you won't need to show it.

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No, a CPAP machine cannot be counted as a carry-on. Because of its status as a medical device, domestic flights (in the U.S.) are not legally allowed to count your CPAP machine against your carry-on bag total, and you're encouraged to board with your device rather than check it in with your luggage.

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Bring extra supplies and a copy of your CPAP prescription. Flying Essentials: Your CPAP machine is not counted as carry-on luggage. Invest in a carrying case and bring distilled water if needed. Know Airline Policies: Contact your airline 48 hours in advance to understand their specific CPAP policies.

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Travel. Yes, you can travel with your device to other countries. The universal power supply works all over the world. You will only need to purchase a plug adaptor for the country you are visiting.

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Yet, more than three-quarters of CPAP users say they use their CPAP machine at least some of the time while traveling. “It's important to pack your CPAP machine whenever you travel, since OSA must be treated continuously, just like any other medical condition.”

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Your device will function normally and safely without water in the tub, but it will no longer provide humidification.

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You're Allowed to Pack Up to 3.4 Ounces of Distilled Water. Keeping a small amount of distilled water in your carry-on bag will be a big help if you need to use your CPAP in-flight, or soon after landing. You're allowed to pack more than that in your checked luggage, too.

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Not all hotels will have distilled water readily available, and depending on where you are staying, you also may not be able to purchase it in stores.

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