Air Inlet Louvers prohibits the light of the sun from entering the cooling tower basin. Installing air inlet louvers helps control the growth of algae. Controlling the light and limiting algae growth means lowering chemical costs. Air Inlet Louvers also help lower the amount of splash-out from the cooling tower. This reduces the amount of water and chemical needed to run the cooling tower efficiently. Also, you will experience easier basin access and removal. Without proper care and maintenance the air inlet louvers in cooling towers with counterflow can sometimes become scaled. If this happens it reduces cooling tower efficiency. Louvers that are scaled lessen the air flow to the unit thus lessening the efficiency.