I believe everyone is familiar with the cooling fan. It can be found in computers, water dispensers, refrigerators, air conditioners, air purifiers, cars, etc.

Cooling fans can be mainly divided into two categories: AC cooling fans and DC cooling fans. And it is mainly used in computer equipment, household appliances, vehicle equipment, mechanical equipment and other fields for ventilation and heat dissipation.

If the cooling fan is used for a period of time, it will generate a lot of noise, which is very disturbing. What can be done to reduce or eliminate noise?

EC fan is a new breed in the fan industry. They are different from other DC fans.

The DC fan is actually a very fragile device. The smaller the physique and the more precise the internal parts, the easier it is to be damaged. What methods should we take to extend the service life of the DC fans?

Even people can't stand the high temperature in the summer, which is same to working machines. How to maintain the DC fans in the hot summer?