The ResMed DC Converter for the S9 series CPAP machines is the best way to power your CPAP when you are away from your home, and it works easily with the humidifier! As ResMed's first power converter of this kind, this converter can power both the machine and humidifier from a 12V or 24V power source such as deep cycle marine battery. Not recommended to power your CPAP directly from a car battery, use a deep cycle marine battery instead. 

This converter is compatible with ResMed S9 series machines only.

This product is compatible with the following machines: 

• ResMed S9 VPAP™ S Bi-level
• ResMed S9 VPAP™ Auto Bi-level Machine
• ResMed S9 AutoSet™
• ResMed S9 Elite™
• ResMed S9 Escape™

This machine is also compatible with the H5i™ Humidifier and ClimateLine™ Tube.

If you're going to be away from a power source, we recommend a lithium ion CPAP battery with a solar charging panel and an inverter.