25Care and Cleaning of Your Microwave Oven (continued)Cleaning Vent Grille (Oven Air Vent)1. Moisten a soft cloth in hot water containing mild detergentand wipe gently as shown in Fig. A.Do not use ammonia or a strong detergent.Installing the replacement Charcoal Filter(NN-CF203)This product is shipped for use in the top exhaust ventilationmode.If you wish to install this product without using an exhaustduct, the exhaust must be recirculated through the front grilleand the charcoal filter. This product is shipped with a standardcharcoal filter already installed.The Charcoal Filter cannot be cleaned and should be replacedperiodically every 6 to 12 months, or more often if necessary.When necessary to replace the charcoal filter, it can be pur-chased from your local Panasonic dealer.The part number of the replacement charcoal filter isNN-CF203, refer to the following instructions for replacement.1. Remove the Vent GrilleRemove three screws from the top of Grille as shown in Fig. B.To remove Vent Grille, open the door, and pull the VentGrille upwards as shown in Fig.B.2. Remove the Standard Charcoal FilterInsert your finger under the bottom of the filter, and pull theCharcoal Filter forward as shown in Fig.C.Installing Vent Grille1. Install the bottom of Grille so that the locking tabs hook intothe slots of the steel plate as shown in Fig. E and Fig. F.2. Replace three screws on the top of Grille as shown in Fig. B.(Fig. A)Screws(Fig. B)(Fig. E)(Fig. F)(Fig. C)(Fig. D)Screw Screw3. Install replacement Charcoal Filter (NN-CF203)Install the Charcoal Filter aligning the two holes, then securewith two screws as shown in Fig. D.