The natural breeze produced by the large industrial fan of Onfu blows on the human body, promotes the evaporation of sweat to take away heat, and makes the human body cool, bringing a cool feeling. Usually, this cooling sensation can reach 5-8 degrees Celsius. Bring comfortable experience of natural wind to human body. The three-dimensional natural breeze blown by large industrial fans is more comfortable because, on the one hand, the three-dimensional blowing of the human body makes the evaporation area of the human body reach the maximum. On the other hand, human beings have accumulated a kind experience of natural wind in nature, but when a natural breeze with variable wind speed blows, the human body will naturally feel extremely comfortable and cool.