| 摘要 |
<P>PROBLEM TO BE SOLVED: To capture dust or the like contained in carried air taken by a fan while suppressing reduction in air quantity and air velocity. <P>SOLUTION: A second duct 31 includes a bent part R for changing the direction of an air passage O for air flowing in the duct, and an adsorptive member 33 for capturing dust contained in the air flowing in the duct is attached to an outer wall surface 31b crossing the direction of the air passage O on the upstream of the bent part R within the duct inner wall constituting the bent part R. <P>COPYRIGHT: (C)2010,JPO&INPIT |
