The characteristics of the cooling fan itself is to actively stir the air and accelerate the flow of air, so it will also inhale dust, mainly in the bearing, rotor and stator, so it will have an impact on the cooling fan, so it is necessary to use the dust-proof cooling fan where there is more dust. Here are several aspects of the dust-proof cooling fan.

1. Double ball bearing is adopted. The ball has dust-proof ability and is not easy to be disturbed.

2. In the design, the motor is mounted on the outer frame to make it sink, reduce the distance between the stator and rotor, and reduce the dust entering.

The above two aspects from the cooling fan itself for dust protection, in the fan plus dust screen is also a very effective way, because with dust-proof design of the cooling fan consumption is small, most manufacturers do not have such abrasive, so in the case of not open touch, add dust screen is more available.