CPAP users should take certain precautions when traveling with a portable machine. Air travel tips for CPAP users include the following:
Drain the humidifier before departing:
There are two reasons for doing this. First, most airports will not allow passengers to pass through security with containers holding more than 100 mL of liquid. Second, leaving water in the humidifier for prolonged periods can damage the machine. Use bottled water — not bathroom tap water — to refill the humidifier after it passes through security.
Navigate quickly security:
CPAP machines may show up as suspicious items on security x-ray screenings. To expedite the process, label the CPAP bag with a medical equipment tag and stay with the machine as it passes through the screening machines. Security personnel will usually inspect the machine by hand, and remaining with the machine will ensure that nothing is dropped or misplaced.
Ensure sanitary screenings:
Place the machine inside a sealed, transparent plastic bag that will prevent the conveyor belt surface from coming into direct contact with it. If security personnel wish to perform an inspection, make sure they use rubber or latex gloves.
Check the baggage allotment:
Most airlines allow passengers to bring one carry-on to be stowed away and a personal item (such as a purse or a small backpack) to be kept with them in the seat. Although policies vary by carrier, airlines generally designate CPAP machines as medical equipment, meaning they don’t count as carry-ons or personal items.
Ask about in-flight usage rules:
Some airlines allow passengers to utilize CPAP machines while in the air, and others do not. Make a quick phone call to the airline ahead of the departure date to inquire about their in-flight CPAP policy.
Inquire about power sources:
Some flights may be too long to operate a CPAP machine on a single battery, and an electrical outlet may be required for supplemental power. Find out if the airline has seats equipped with outlets.
Additionally, here are a few general tips for traveling overseas with a portable CPAP machine:
Buy a voltage adapter:
Most CPAP machines contain power converters that adjust the AC voltage from 110 to 240 volts. This range makes them operable in most locations. As an extra precaution, travelers are urged to purchase a universal voltage adapter, which are widely available for less than $30 and can be used anywhere in the world.
Bring spare parts:
Assume that it will be difficult to obtain spare CPAP machine parts while overseas — in most places, it will be — and bring extra batteries, power cords, connective hoses, humidifiers (if detachable), and filters, as well as masks and mask cushions.
Carry medical information:
In case a doctor’s visit is required overseas, travelers are urged to bring a medical alert card and a copy of their CPAP prescription on their person at all times during their journey.