In addition, the constant air movement created by an evaporative cooler lowers the temperature perceived by room occupants - called the "effective temperature" - by an additional 4 to 6 degrees below the "evaporative cooled temperatures" shown in the chart.

Finally, an evaporative cooler works best in the hottest time of the day. This is because relative humidity drops quickly as temperature increases. For example, a morning relative humidity of 60 percent at 75 degrees will drop to only 31 percent when the afternoon temperature reaches 95 degrees.

City/State	Outside Temperature	Humidity	Evaporatively Cooled Air Temperature
Buffalo, New York Los Angeles, CA Phoenix, AZ	88 94 106	54 38 16	78 78 78

Energy Savings
An evaporative cooler consumes only one-fourth of the electrical energy required to operate a refrigerated air conditioning unit. This means you can save up to 75% of your cooling costs on your electric bill!
In fact, a typical whole-house evaporative cooler from Adobe Air requires two small electric motors totaling between 1/2 and 3/4 horsepower. A comparable refrigeration unit requires three electric motors with a combined horsepower of 3 1/2.

Other Benefits
With evaporative cooling, a complete air change occurs every one-to-three minutes. This offers a great advantage over traditional refrigerated air conditioning, which employs a complicated "closed" system that constantly recirculates the same stale air.

• Constant cool air movement pushes heat out -- along with stale air, smoke, odors and pollution.
  
• The high volume of fresh, cool air produced by the evaporative cooler helps your body ventilate naturally.
  
• Evaporative cooling helps maintain natural humidity levels, so wood furniture and fabric fibers do not dry out prematurely.