Zanussi ZNME32FW0 Manual De Uso página 14

The Fresh Dial (In some models)
Fresh dial
If the crisper is full, the fresh dial located in front of the
crisper should be opened. This allows the air in the crisper
and the humidity rate to be controlled, to increase the life
of food within.
The dial, located behind the shelf, must be opened if any
condensation is seen on the glass shelf.
Visual and text descriptions in the accessories section may vary according
to the model of your appliance.
EN -14-