ARS300 Roots fan impeller is a three-blade impeller, so ARS300 Roots fan is usually based on the number of impellers is also known as the ARS300 three-blade Roots fan. ARS300 Roots fan impeller is the largest impeller of the ARS, the size of the impeller can also represent the size of the power performance. The three-blade impeller is divided into twisted blades and straight blades, and the impeller of the ARS300 Roots fan is generally a straight-blade impeller.