| 摘要 |
<p>PROBLEM TO BE SOLVED: To improve an indoor ventilation method capable of ventilating an indoor even in an unmanned manner, and a device therefor.SOLUTION: An electric fan is provided at one of a plurality of ventilation ports provided in a room is provided; a solar panel is connected to the electric fan in a power suppliable manner; with the ventilation port provided with the electric fan as an exhaust port, an air flow passage connected to the exhaust port is formed in the room; and automatic ventilation is performed in the room.</p> |
