What are the requirements for ventilation of animal husbandry fan?

　　Animal husbandry fan is an important product in animal husbandry industry. In the process of operation of animal husbandry fan, its ventilation capacity is also required. Let's take a look.

　　The general environmental requirements of animal husbandry fans are 25-30 times / hour; the production workshop with heating equipment requires air exchange of 40-50 times / hour; in public places with dense human flow, the air exchange capacity of animal husbandry fans is 30-40 times / hour; in the humid South, the air exchange times are increased appropriately, while the animal husbandry fans in the hot and dry north areas can reduce the air exchange times appropriately.