What makes swamp coolers effective?

Swamp coolers, or evaporative coolers, are effective due to their ability to lower air temperature through the evaporation of water. When warm air passes over water-saturated pads, the water evaporates and absorbs heat, resulting in cooler air being circulated into the environment. They are particularly efficient in dry, low-humidity climates, where the evaporation process can significantly reduce temperatures. Additionally, swamp coolers consume less energy compared to traditional air conditioning systems, making them a cost-effective cooling option.