| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a ventilator which prevents pressure drop and performs continuous ventilation, while preventing steam from entering into a body box.SOLUTION: A ventilator includes a damper unit having a planar ventilation member movably provided in an air-supply passage and having air permeability, a humidity sensor detecting the humidity in the air-supply passage, and a control unit controlling the damper unit on the basis of the detection result of the humidity sensor to move the ventilation member.</p> |
