The Resmed AirFit/AirTouch N20 Setup Pack is a connector kit for the ResMed AirMini travel CPAP machine that allows you to use the AirToouch/AirFit N20 nasal mask with it, providing a complete, portable system with a special connector, flexible tubing, and HumidX waterless humidification cartridges for comfort on the go, without needing a bulky water tank.