In every cooling tower, there is evaporative water loss to the environment. When liquid water becomes entrained in the leaving air stream, however, drift eliminators are used to minimize the amount of water carried out of the cooling tower with the exhaust air. These water droplets carry the same concentration of impurities as are typically found in cooling towers. Drift eliminators are designed to prevent the droplets and mist from escaping by capturing the droplets and sending them back into the tower. Efficient drift eliminators will keep drift losses to less than .001% of the recirculating water flow rate.