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Why Evaporative ? How does it works? How does it cools? Supply air temp. Chart Cooling effect Humidity myth & facts Psychometric chart Comparison Installation illustration Air change Principle FAQ

Why Choose Evaporative Cooling ?


  • Evaporative coolers do not use compressors, condenser, chiller coils, cooling towers or heavily insulated piping. Thus the cost of acquisition and operation is a fraction of conventional air conditioning and mechanical refrigeration systems.
  • Initial cost is less than 1/3th the cost of refrigerated air conditioning and the operating costs is less than 1/10th the cost of refrigerated air conditioning to run.
  • Maintenance costs are minimal requiring simpler procedures and lower skilled maintenance people.
  • helps in reducing electrical consumption of other machines run by electric motors.


  • In peak summers, the temperature drop goes to even 20 degrees, thus making the space ambient & cool. at the outside temperature of 45 degrees the supply air would be 25-26 degrees.
  • It lowers effective temperature - the temperature you feel - by at least an additional 2º to 6º because when air passes over human skin, it causes a sensation of 2-6 degree lower than supply air temperature.
  • It reduces radiated heat- The constant flow of cool air absorbs heat from all exposed surfaces and results in a reduction of the heat radiated to the human body.

Health & environment benefits

  • Brings 100% fresh outside air that is cooled & washed through filter pads.
  • Comfort is improved with air movement- not stuffy & stale, Constant air movement of the evaporative cooler pushes hot air out removing dust, pollen, smoke, odour, and pollution and replaces it with cool fresh air.
  • Helps maintain natural humidity levels, which benefits people, machinery and furniture and cuts static electricity.
  • Unlike air conditioning, evaporative cooling does not require an airtight structure to operate at maximum efficiency. In fact, the building occupants can open doors and windows.
  • Evaporative cooling is also an environmentally-friendly alternative to air conditioning since it has no CFC's or HCFC's.

Protection / Safety

  • Protecting workers in hot environment which eliminates body reactions caused by heat stress.
  • Protects workers from heat related disorders like Heat Stroke, Heat Exhaustion, Heat Cramps, Fainting & Heat Rash.
  • All electrical machinery & expensive electronic components including LT Panels & Drives are protected from failure caused by excessive heat.
  • Evaporative Cooling increases the humidity & decreases the temperature which help greatly in preventing fire. major cases of fire in summers is due to high temperature & low humidity which increases the static, thus making lot of industries vulnerable.
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