The comfort of a person is mainly dependant upon the following factors:
An evaporative cooler decreases temperature and increases air flow but increases humidity. The effect of the temperature reduction far outweighs the increase in humidity. Any additional air flow further improves the comfort level.
It can be seen from the diagram below how the apparent conditions of the air changes by passing through an evaporative cooler. If the air in a building is at 35°C and 35% relative humidity the conditions are quite extreme. However if we introduce evaporative cooling the air leaving the cooler would be 24 °C and 91% humidity. This means that the comfort level moves clearly into the more comfortable zone.
Xtreme Cooler changes the hot conditions typically found in most industrial sheds & buildings from "Severe Heat Stress Zone" & "Heat Stress Zone" to "Comfort Cooling Zone"