AC Power Supply with Cord for S9 Series CPAP/BiLevel Machines

ResMed’s S9 Series CPAP and BiLevel machines use an external power supply with AC Power Cord. There are two versions of the power supply: a 90-Watt version which is supplied as standard with the system, and an optional lightweight 30-Watt version that can be used to power the CPAP by itself without a heated humidifier.