ResMed S9 Series DC Converter 24V/90W Accessories They do not alter pressure

They do not alter pressure settings or how your machine functions

It is designed exclusively for use with the ResMed AirMini Travel Machine

to attach to the battery terminals

Do liners affect mask fit or sizing

This is the replacement headgear for the ResMed Quattro FX Full Face CPAP Mask

ResMed S9 Series DC Converter 24V/90W Accessories They do not alter pressureThe 24V 90W DC DC converter allows you to operate an S9 device including an H5i and ClimateLine from a 12V or 24V DC power source in a car, boat or other vehicle equipped with an appropriate battery . Includes an adapter cable with a 12 V DC jack and alligator clips, to attach to the battery terminals. This product includes: DC DC converter 24V 90W Adapter cable with DC plug with alligator clips This product is compatible with: ResMed S9 Series