名词
中文翻译：通风设备
同义词：
['ventilation system', 'air circulation system']
例句：
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1. The factory needs to install a new ventilation device to improve air quality.
工厂需要安装一个新的通风设备来改善空气质量。
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2. The doctor advised us to use the air circulation system to keep the room fresh.
医生建议我们使用空气循环系统来保持房间的新鲜。
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3. The new ventilation device significantly reduced the concentration of pollutants in the room.
新的通风设备显著降低了房间中污染物的浓度。