通风管道是使用螺旋风管加工制作而成的，主要是起到一定的通风降温的效果，使用中需要有一些细节注意，由于阳光照射建筑物、机器设备、人体等热源导致需要通风的场所气温高于室外。负压风机能将室内热气迅速排出，让室温和外界温度持平，不至于车间内温度升高。

The ventilation pipe is made by the use of the spiral pipe. It mainly plays a certain effect of ventilation and cooling. It is necessary to pay attention to some details in use. The temperature of the place where the sunlight irradiates the building, machine equipment and human body causes the air temperature in the place where the need is ventilated is higher than that of the outdoor. The negative pressure air function quickly discharged indoor hot air, so that room temperature and external temperature were kept equal, and the temperature in the workshop did not rise.