More About Mist / Fog Cooling & Why It is So Efficient?


Quick Facts:

  • 1 gallon of water has an enormous amount of cooling potential (approximately 8000 BTUs).
  • The more efficiently you can evaporate the water, the more it's full cooling potential is realized
  • Surface area is the key to efficient evaporation - the greater the surface area the quicker water evaporates.
  • SMARTMIST™ systems can give 1 gallon of water a surface area greater than a soccer field.
  • Because of this, we can easily achieve up to a 30 degree or higher drop in temperature when it is needed most, even in humid climates.
  • The SMARTMIST™'s start up, maintenance, and energy costs are extremely low compared to any other methods of pre-cooling







Commercial Misting or fogging as some people call it, is the atomization of water droplets to a size that can evaporate quickly. This is achieved by forcing water through a specially designed mist nozzle at a pressure that can create a fog of ultra fine water droplets (as little as 5 microns). These tiny water droplets quickly absorb the energy (heat) present in the environment and evaporate, becoming water vapor (gas). The energy (heat) used to change the water to a gas is eliminated from the environment, hence the air is cooled. SMARTMIST™ is exponentially more efficient then other means of evaporative pre-cooling because of the rate at which it can evaporate water and use the 8000 BTUs of cooling potential per gallon of water.

Imagine that 1 gallon of water, atomized through our SMARTMIST™ high pressure mist system, has a total surface area larger than a soccer field and you will quickly realize how efficiently we can evaporate that gallon of water. Compare this to the limits of an evaporative pad system, with only a fraction of the surface area. This is why mist pre-cooling systems can be used in higher humidity climates then evaporative pad systems.

The other big advantage of SMARTMISTT mist pre-cooling is that it takes very little energy or water to achieve a dramatic drop in temperature of up to 50°F depending on ambient temperature & humidity.. Approximate costs per 400,000 BTUs of Cooling = about $0.50/hr for both electric and water.