The ResMed 12 Volt DC Adapter was designed specifically for the ResMed S8 and ResMed VPAP series devices.
The DC – 12 converter from ResMed provides exceptional power source versatility, by allowing you to use your ResMed S8 device from a vehicle that has an available 12V DC power source, such as your car, truck, or boat.
The device is also required when using the ResMed S8 device in areas where regular AC power is unavailable and you have to use a back-up 12V electrical source.
Return On Warranty Issues or Mask Assurance Purchase Only.