| 摘要 |
<P>PROBLEM TO BE SOLVED: To obtain a connection duct that improves the performance of preventing rainwater from infiltrating into a room without any work from the outside for the mounting thereof. <P>SOLUTION: The connection duct is configured to be mounted to an inner wall surface of a building wall 2 to connect an air supply port penetrating the building wall 2 and an air supply ventilator 4 disposed inside the building for introducing external air through the air supply port. The connection duct includes a duct 1, and a filter 6 disposed in an air passage inside the duct. The duct 1 has a hollow cylindrical body having an suction opening on one end and an exhaust opening on the other end which are connected through the air passage, and configured such that the bottom of the air passage inclines downward toward the suction opening end side when the suction opening side is fixed to the building wall 2 to join the air supply port and the suction opening. <P>COPYRIGHT: (C)2012,JPO&INPIT |
