| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a filter of a louver for a ventilation device installed at a high place preventing dirt on a ceiling surface with minimum maintenance. <P>SOLUTION: The ventilation device 6 installed at a ceiling has a body opening 1 at a lower surface of the device as a suction port, an exhaust port 2 formed at a side of the device, and a blower 5 installed inside the device. In the device 6, a decorative panel 8 having a suction opening 7 communicated with a room below the body opening 1, a first filter 10a disposed down the stream of ventilation of the decorative panel 8, a space 8a between the suction opening 7 of the decorative panel 8 and the first filter 10a, an air duct 8b with ventilation through the first filter and an air duct 8c without ventilation through the first filter are provided. <P>COPYRIGHT: (C)2012,JPO&INPIT |
