Compare Evaporative CoolersEvaporative coolers (or "swamp" coolers) can effectively lower the ambient temperature in a room or area by up to 20 degrees and for less than one-third less than traditional air conditioning systems. The following chart shows how some of our best-selling portable air coolers measure up in terms of features: |
How Swamp Coolers Can Save You Money | How Evaporative Cooling Works |