Covering an area of ​​76,5 million square meters, it preferred A. O. Smith in Istanbul's new, world's largest airport water treatment systems. In the airport project, solutions were provided in many different points such as hangar buildings, energy buildings, maintenance buildings, catering buildings and boiler rooms, with reverse osmosis systems of different capacities, pre-filtration and softening systems, and water treatment systems in the most efficient and effective way.