The ResMed S9 30 Watt Power Supply is an optional, smaller power supply that can be used with any ResMed S9 device WITHOUT the H5i heated humidifier.
The 30 Watt Power Supply includes four plug adapters, including adapters for US, Europe, Australia and Great Britain.
All S9 CPAP machines include the larger 90 Watt power supply, but the 30 Watt power supply offers less bulk (it's 2.5 inches shorter than the 90W power supply) and less weight (it's about 3/4 the weight of the 90W power supply). It's a great choice for CPAP users traveling without a humidifier.
Please note that this 30W power supply is not designed to power a ResMed S9 machine with a humidifier. If you're using the S9 H5i heated humidifier, then you need the 90W transformer which came with your device.
Also note that this 30W transformer works with all S9 devices, including the S9 VPAP bilevel devices.
Call us at 1-888-955-2727 or email us if you have any questions about power options for your CPAP machine.