In the previous sections, we discussed how to test a tube and chiller of a laser device. In this section, we will discuss how to check a blower or blower of a laser device. The function of the blower is to pump air to the nozzle head to help cut and reduce the smoke caused by cutting the material, which is very important for good cutting quality and long life of the lens, because if the wind pressure is low, the soot head enters the nozzle
