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: |
| NewAir AF-1000R $199.95 |  |
| Quietaire QC36DVS $2199.00 |  |