With the normal operation of the fan, the noise cannot be eliminated. The latest research shows that as long as the wind speed exceeds 0.75m/s, noise will be generated. Of course, the lower the wind speed, the lower the noise generated. Noise is harmful pollution. In our design, we always want to reduce the noise of the fan equipment as much as possible.

With the development of fan technology, the noise pollution we can achieve is getting smaller and smaller. Is the noise as low as possible when selecting a fan?

Low noise is of course good, but its economy must be considered. The lower the required noise, the higher the cost of the fan required. Approximately every 10 decibels reduced, the cost of the wind turbine doubles (empirical value, non-linear). The minimum noise of most fans cannot be less than 35dBA. Therefore, when choosing a fan, it is not necessary to pursue low noise, just within a reasonable range acceptable to you.