Showing the operationThe hood is showing the working state by means of a lighting or acoustic signal. 
Intensive speedIt activates the motor at the highest speed for a certain period of time, and then it automatically reduces the speed. This function is useful in the cooking phases where you generate a lot of fumes. 
Timer for switching offWhen you have finished the cooking, this function allows to have the hood working for a certain period of time to complete eliminate the fumes and the remained odours. After that period of time the hood switches off in an automatic way. 
Saturation indicator of the filtersThe controls is giving automatic advice when it is necessary to do maintenance both of the carbon and the grease filters. 
Remote controlIt allows to activate all the functions at distance. On some models it is delivered with the hoods, on other models it can be purchased separately.