[. . . ] 2) cooking vapours and/or odours are depurated by a special charcoal filter and recirculated around the room by the front fissures. ATTENTION: For the filtering version it is absolutely necessary to use the special charcoal filter whereas for the ducting version it is not. INSTALLATION Before assembling the appliance it is necessary to take off the anti-grease grille. [. . . ] ATTENTION: For the filtering version it is absolutely necessary to use the special charcoal filter whereas for the ducting version it is not. INSTALLATION Before assembling the appliance it is necessary to take off the anti-grease grille. To take off the grill it is necessary to push this one towards the rear of the apparatus, by means of the proper knobs, so that it gets released, and to pull it downwards; to take it off completely, make it rotate on one side keeping the other one steady (Fig. Installation in extraction version: depending on your requirements, choose which opening to use for the air outlet (rear or upper) and fit the flange (A) provided, proceeding as follows: make the 3 flange tabs and stop (C) coincide with the slots on the hood; turn the flange slightly clockwise until it locks into position (Fig. On the other opening, fit the cap (B) provided and make the 3 cap tabs and stop (D) coincide with the slots on the hood; turn the cap slightly clockwise until it locks into position. Installation in filter version: on both the openings (rear and upper), fit the caps (B) provided, making the 3 cap tabs and the stop (D) coincide with the slots on the hood; turn the cap slightly clockwise until it locks into position. The following operations are essential for assembly: Install a proper wiring system. 7) is completely unscrewed, so that the inside valve let the air to be conveyed again into the room throuth the slots. In case the hood is a filtering version one, it is necessary to change the charcoal filter (Fig. To remove the charcoal filter: take off the anti-grease grill: by means of the proper knobs make the grill move towards the rear of the apparatus and drop the front part of it; now, keeping the right (or left) side of the grill steady, make the opposite side rotate so that it gets off the hood (Fig. The anti-grease filtering panel is easily removed from the grille by opening it as described above and lifting the two stops made of metallic wire (Fig. In the filtering version, to get access to the anti-grease panel the charcoal filter must be removed too. If the panel is a metallic one it can be washed with some neutral detergent by hand or in a dish-washer. [. . . ] In the filtering version, to get access to the anti-grease panel the charcoal filter must be removed too. If the panel is a metallic one it can be washed with some neutral detergent by hand or in a dish-washer. [. . . ]