Evaporative cooling is one of the oldest and most natural forms of climate control. This process occurs when hot, dry air absorbs moisture as it passes over a body of water. As the water evaporates, the air is cooled and energy is exchanged resulting in lower air temperatures. Today, this process has been refined for natural and efficient home cooling.

The coolers lower indoor temperatures by combining the natural cooling properties of evaporating water with an efficient air moving system. This combination of moisture and a steady breeze can lower indoor temperatures by as much as 30'F. Airflow is controlled by opening windows to allow the unit to push warm air outside.