The blower mainly consists of the following six parts: motor, air filter, blower body, air chamber, base (and tank), drip nozzle. The blower relies on the eccentric rotation of the eccentric rotor in the cylinder, and the volume change between blades in the rotor slot can be inhaled, compressed and exhaled. Using the pressure difference between the blower in operation automatic lubrication to drip nozzle, drop into the cylinder to reduce friction and noise, and can keep the gas inside the cylinder does not return, this kind of blower is also called sliding-vane blower. Blower conveying media mainly clean air, clean gas, sulfur dioxide and other inert gases. Other inflammable, explosive, corrosive, poisonous and special gases can be produced as needed