该车间原先存在二大问题，一是车间在顶层，夏季屋顶太阳辐射热量大，比其它楼层的车间闷热；二是冷粘材料有较重的异味散发，影响工人身心健康。

安装设备以后，负压风机开机工作时，既排出了车间热气，也排出了有害气体，同时在车间内形成负压，强行将室外的新鲜空气在内外压力差下通过水帘墙降温吸入室内。达到了清新冷风进、异味热风出的理想效果。

There were originally two major issues with this workshop. Firstly, the workshop was located on the top floor, and in summer, the heat radiated from the roof was intense, making it hotter than workshops on other floors. Secondly, the cold-bonded materials emitted a strong odor, affecting the physical and mental health of the workers.

After installing the equipment, when the negative pressure fan is turned on, it not only expels hot air and harmful gases from the workshop, but also creates a negative pressure inside the workshop. This forcefully draws fresh outdoor air into the room through the water curtain wall, cooled by the pressure difference between inside and outside. This achieves the desired effect of bringing in fresh and cool air while expelling hot and odor-laden air.