Product Name: Environmental Air Conditioner RTF-20C (Top Out Air) Product Features: The outdoor air is supplied to the room through a fan, and after passing through a wet curtain soaked in water, the air comes into full contact with moisture and absorbs sensible heat from the air, thereby achieving the purpose of cooling, ventilation, dust removal, and increasing fresh air. Suitable locations: factory workshops, canteens, dormitories, storage centers, shopping malls, internet cafes, schools, gyms, car dealerships, stations, outdoor activity areas, and animal husbandry.