The MAT 18-EQ is an industrial evaporative air cooler which utilises the natural process of using evaporation to cool the air. The MAT 18-EQ uses a low wattage water pump to circulate water from the water tank on to four cooling pads, which in turn becomes very wet. The 1.1KW fan draws air from outside the unit through the damped pads. As it passes through the pads the air is cooled by evaporation. The MAT 18-18EQ is ideal for open areas and is capable of cooling areas of up to 150m² but is also suitable for spot cooling.