| 摘要 |
<p>PROBLEM TO BE SOLVED: To reduce cost and to require no change in a body even when ventilation devices of various characteristics are to be proposed.SOLUTION: A ventilation device is configured in such a manner that a diffuser part 7 is provided so as to be substantially adhered to a motor 5, a plurality of notch parts 8 are provided at the diffuser part 7, and a detachable diffuser 10 in which a claw part 9 which is fitted to the notch part 8 is provided and whose diameter is larger than that of the diffuser part 7 is mounted on the diffuser part 7 so as to cover the diffuser part 7. As the detachable diffuser 10 is mounted on the diffuser 7 so as to cover the diffuser part 7, even when ventilation devices of various characteristics are to be proposed, the ventilation device can be acquired which does not require change in a body and which costs less.</p> |
