Leisure places are usually full open environment, the general ventilation and cooling equipment is either too weak, or can not play a role in the full open environment, before outdoor ventilation and cooling has been a major difficulty. According to the actual needs of the type and scale of outdoor activities, two types of equipment, hanging industrial fans and mobile industrial fans, can be selected to be arranged in any area required by the site, and single or combined use at the same time to achieve the purpose of effective ventilation.