| 摘要 |
PURPOSE:To provide an improved filter for a ventilation device wherein, in addition to a raising of a filter performance by an optimization of a shape of the filter, silencing of an operation noise can be achieved and further an possibility that the filter itself can be thrown away in a resources saving manner when the filter is replaced and thrown away, can be obtained. CONSTITUTION:In a filter for a ventilation, the filter being assembled together with a motor, a fan and a fan cover in a frame of an ventilation device and the filter being used after being folded in a zigzag form, a periphery of the filter 8 which is folded in a zigzag shape, is not fixed by the frame but the top edge of the zigzag line of the filter 8 is connected by a band 8D. |
