| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To obtain a ventilation device, with which detailed control of a ventilation air volume can be performed depending on whether there is a person in a room or according to the quality of room air, and energy can be saved. <P>SOLUTION: The ventilation device includes: a ventilation fan; a motor for rotating the fan; and a plurality of sensor connections for connecting a plurality of external sensors arranged in the room. The device is provided with a control unit for controlling the rotation of the motor with a multi-stage airflow notch so that the quality of room air detected by the plurality of sensor connections and indicated through the plurality of sensors satisfies a determination level. <P>COPYRIGHT: (C)2012,JPO&INPIT</p> |
