The human body cools in the natural breeze generated by the large energy-saving fan to boast on the human body, promotes the evaporation of sweat to take away the heat, and cools the human body, bringing a cool feeling. Usually, this cooling experience can reach 5-8 °C. The three-dimensional natural breeze that Anfu led the creation of a large industrial fan is more comfortable because of: on the one hand, the three-dimensional boasting of the human body, the evaporation area of the body is maximized. On the other hand, human beings have accumulated an intimate experience of natural winds in nature. Once the natural breeze with wind speed changes, the human body naturally feels comfortable and cool. Air circulation in previous ventilation schemes.