Here are 2 images of the R&D team conducting a field test in the streets of Las Vegas in summer 2008. The temperature on the day was 102.4ºF, with a humidity of 15%. The result: the temperature of the air was cooled by 23.8ºF!
If the day was even hotter and drier, the air would have cooled even more! (Up to 30ºF)
Handy Cooler™ temperature
How much cooler is the output air exactly?
Handy Cooler™ is based on evaporative cooling. The cooling effect relies on the the ambient/surround air temperature and relative humidity. Looking at the tables below, you can find out how many degrees (C or F) Handy Cooler™ reduces under specific ambient temperature and humidity. A dry and hot environment (closer to the bottom left portion of the tables) will cool the air more than a cold and humid environment (top right portion of tables).
Figures are for approximate guidance only. Actual performance may differ due to uncontrolled factors such as air pressure, fan speed, wetness of cooling filter, etc.
Temperature drop of air produced from Handy Cooler™ under given ambient temperature and relative humidity of surrounding environment. (top in degrees C and bottom in degrees F):
Ambient temp: 110F
Relative Humidity: 10%
OUTPUT AIR = 83F
(27F cooler than ambient temp)
Optimum environment to use Handy Cooler™
The more hot and dry the weather is, the better it works (colored YELLOW in image below). Therefore, desert areas are ideal for Handy Cooler™ to operate. Example places:
- Arizona, Texas, Nevada, and central USA
- Middle East
- Central Australia
Wet and humid environments (colored GREEN below) do not allow effective evaporation to take place, therefore not allowing Handy Cooler™ to perform efficiently.