E03D—WATER-CLOSETS OR URINALS WITH FLUSHING DEVICES; FLUSHING VALVES THEREFOR
E03D9/00—Sanitary or other accessories for lavatories ; Devices for cleaning or disinfecting the toilet room or the toilet bowl; Devices for eliminating smells
E03D9/04—Special arrangement or operation of ventilating devices
E03D9/05—Special arrangement or operation of ventilating devices ventilating the bowl