As Water is evaporated, energy is lost from the air thus reducing temperature. The standard impeller is aluminium.

Evaporation will take place when the Humidity is below 100% and the air begins to absorb water. Any given volume of air can hold a certain amount of water vapour and the degree of absorption will depend on the amount it is already holding.

Energy is required to change water from liquid to vapour. This energy is obtained in an adiabatic process from the air itself air entering Symbiosis air washer gives up heat energy to evaporate water. During this process, the dry bulb temperature of the air passing through the cooler is lowered.

On a normal summer day, temperatures in factories, warehouses or on particular mezzanine floor can rise well in excess of 30° C, resulting in unpleasant working conditions which can have an effect on morale, absenteeism, production and ultimately productivity.
For these type of applications, conventional Air Conditioning Systems are prohibitively expensive, leaving evaporative cooling as the only viable alternative.

In Symbiosis Evaporative Cooling System, a pump circulates water from a reservoir tank to the top of absorbent cooling pads.
The pads become saturated with water as the water descends by gravity back into the tank. Powerful Symbiosis Centrifugal Fan draws warm air from outside through the wet pads. As the air passes through the pads it is cooled by evaporation and the cooled air is then circulated around the building.

Wet Ventilation is particularly suitable for commercial and industrial applications, where compressor-type air conditioning is prohibitively expensive. Quick and easy to install, Symbiosis air washers are fitted to the exterior of the building, either on the roof, the sidewalls, or at ground level. A system of ductwork and air diffuses are then used to channel the cool air to where it is needed.