| 摘要 |
Ventilation means in a water-closet for removing nasty smelling air in the associated lavatory space. In the water-closet, channel means is provided between the lavatory bowl (22) and the drain pipe (2) of the water-closet, via the flushing tank (24). A suction valve (8) operating as a non-return valve is provided in said channel means and is placed in a house in the air space (3) of the flushing tank (24) for opening said channel means in response to a negative pressure on the drain side in respect of the other side. Said house includes a blower for producing said negative pressure therein. A switch for actuating the blower is the same switch arranged for actuating the illumination in the lavatory space. |
