Evaporative Coolers (also known as eco-friendly air conditioners, evaporative water-cooled air conditioners, coolers, air coolers, and water-cooled air conditioners) are a comprehensive evaporative cooling and air exchange unit that combines cooling, air exchange, dust prevention, and odor removal. In addition to bringing fresh air and reducing temperatures to industrial workshops and public spaces, the key feature of eco-friendly air conditioners is their energy-saving and environmental protection! They are a new eco-friendly product without compressors, refrigerants, or copper pipes. The evaporative cooler operates on the principle of water evaporation, achieving cooling through a physical method and solving the issue of excessive "Freon" emissions from conventional air conditioners. It uses a wet pad as the cooling medium, with water flowing evenly down the wavy surface of the wet pad from top to bottom, uniformly moistening it. When the fan draws air, it creates pressure that forces unsaturated air to pass through the porous and moist wet pad surface. This converts a large amount of moisture in the air into latent heat, causing the air entering the room to drop from dry bulb temperature to close to wet bulb temperature, increasing the humidity of the air. This transforms dry, hot air into clean, cool air, thereby achieving the effect of cooling and humidifying.