鼓风机

例句：

1. 1. The fan is designed to blow air into the room.
   这台风扇的设计是把空气吹入房间。
2. 2. The fan is used to cool down the room during summer.
   这台风扇在夏天用来冷却房间。
3. 3. The fan is essential for maintaining a comfortable indoor environment.
   这台风扇对于保持室内舒适环境至关重要。