Replacement 30 watt AC power supply for the ResMed S9 series CPAP units. This power supply is considerably smaller and lighter than the standard 90W units, which lends itself well to traveling light without the humidifier. This Power Supply kit also includes four plug adapters, including adapters for US, Europe, Australia and Great Britain.
*** Please note that this power supply will not power the humidifier on an S9 CPAP machine. If you need to use the heated humidifier, you will need the 90W power supply, PN36821. ***