VENTILATING FAN

PROBLEM TO BE SOLVED: To provide a silent ventilating fan, utilizing a wall hole for an air conditioner as a ventilating port or ventilating by boring the wall hole for air conditioning at a required place whereby the work of a carpenter is not required since the work requires only an electric work whereby a cost and a time are saved while convenient especially for the ventilation of a smoking room, a toilet or a storage room which are requesting a long ventilating time and having a ventilating force, stronger than that estimated from the appearance of the same. SOLUTION: The wall hole 15 for air conditioning is utilized, or the wall hole 15 for air conditioning is bored at a requested place. Then, a cylinders 1-3 is inserted thereinto from the outside of a house while utilizing the wall hole 15 as a ventilating port. A ventilating fan main body or a cylindrical box 1 is mounted at the outside of the house. Further, the air suction hole of an air suction box 4 is made to penetrate the cylinder 1-3 passing through the wall hole 15 into the room. The bottom of the air suction box 4 is fixed to a wall 9 by a resin nuts 6 screwed on the cylinder 1-3. The air suction cover 5 is put on the box 4.