Travel FAQs

Yes, we have a limited number of rental batteries compatible with S8 and S9 devices. For further information please click here. To check availability and to make a booking please call the RealSleep team free on 0800 9177071

Yes. ResMed’s range of S8 and S9 products can all use either an inverter or converter. Earlier products, such as the S7 series, will only work with inverters.

ResMed has converters available for its range of S8 and S9 products. The converters allow you to operate your device from a 12V or 24V DC power source in a car, boat or other vehicle equipped with a suitable battery.

A converter “converts” the voltage from one value to another. It usually refers to a DC to DC process where a higher or lower voltage is required.

ResMed has a range of converters available for its S8 and S9 products. The converters allow you to operate your CPAP device from a 12V or 24V DC power source in a car, boat or other vehicle equipped with a suitable battery.

Your local distributor can help you choose the correct converter for your CPAP device.

An inverter is a device that turns a low voltage direct current into a mains level alternating current (DC to AC).

Inverters are available from electronics stores and should be capable of supplying voltage in the 100-300V range and should be of sufficient capacity.

If you are using a CPAP device without a humidifier or an S9 combined with a H5i you will need a modified sine wave inverter with a minimum power rating of 150 W. If you are using a CPAP device combined with a H2i, H3i or H4i you will need a pure sine inverter with a minimum power rating of 200 W.

Your local distributor can help you choose a suitable inverter for your CPAP device.

Download our official compliance letter here:

Compliance Letter (PDF 660kb)

All ResMed CPAP systems have a power supply that automatically adjusts to the various power supplies in different parts of the world. All devices will accept 100-240V, 50-60Hz, without any special adjustment. Please note that you will still need to use the correct adapter for the power supply socket of the country you are visiting.

Please also note that this does not apply to the C-Series Tango humidifier, as it will only function at 110V.

Some airlines allow passengers to use their CPAP in-flight; some do not. Make sure you check with the airline before you book your flight. Qantas & Air New Zealand actively assist patients who wish to use a flow generator in-flight. Please note: Do not use humidifiers while on an aircraft.

Yes. Even though the rating plate on the CPAP specifies 50-60Hz, the switch mode power supply in the flow generator is compatible with the 110 volts 400Hz power supply on the aircraft. Remember to book a seat close to a power outlet on the aircraft. The number and availability varies from one aircraft type to another.

The ResMed AutoSet Spirit device will automatically compensate for altitude changes. The ResMed S8 Escape device may require manual adjustment for altitude changes. Failure to make the adjustment may result in ineffective therapy. Consult your sleep specialist/clinic to discuss this if you have any questions.

No, the x-ray scanners will not harm the device. However, security may require you to show the medical statement from your physician verifying that you are carrying medical equipment. Make sure this is handy.

Yes. If you are having surgery, it is very important that you tell both the surgeon and the anaesthetist that you are being treated with CPAP. You should also inform the attending physician that you have been diagnosed with obstructive sleep apnoea (OSA).