An evaporative air cooler, sometimes called a swamp cooler, cools the air by evaporating water. Unlike conventional air conditioning units that rely on chemical refrigerants and compressors, these coolers pull hot air through pads soaked with water, which cools the air as it passes. The question is, will this older method still be effective in 2026?

If you are seeking a powerful, environmentally responsible means to cool vast regions, you have probably wondered what a swamp cooler does.

This guide will help you make an informed decision about whether to buy a swamp cooler or a split AC. It will explain how each works, how much it costs, and how well it works.