With the development of society and economy, the people requires a higher and higher air quality in their working and life environment,
Many people who know nothing about the fan industry might think the AC fan and DC fan are the same, the fact is that they both are different. I am gonna tell the differences from their bearing systems.
The followings as a reference to roughly check if DC fans you select are good or not, which might be helpful for some new buyers or purchasers who want to order dc fans at the first time.