The air of the area is aspirated by the upper part of the hood. It is heated (or not) then sent into the rest of the device until the tubes. 

The power of the ventilation is an important element for a good drying of the shoes, gloves and helmets. The heat will allow:

- to reduce the drying time. This is usefull during lunch or in the morning just before going skiing to put the boots warm,

- to bring comfort to the user because the boot is more adaptable. The bootsfitting is easier then.