Blower is used for the atomization of water and of the detergent. Therefore, it is usefulwhen a car is washed. 1. ... without any oil-dust, as the blower sealing structure is reasonable, oil can not enter the chassis, thus the air is very clean.8 ... , low vibration, moreover, and highly increase the life of the blowers.16.Mercury column detecor: we test the air capacity and pressure through it ...