Evaporative Cooler provide great cold airflow for factories, warehouses and marquees. They operate with a lower energy than your standard refrigerant systems.
Evaporative Coolers works by a fan drawing outside air through a moistened pad. As it passes through the pad the air is cooled by evaporation. The newly cooled air is then vented into the building.
There are a number of different sizes and air flow options to meet any requirements.