In two-cell towers, two of each motor and fan equipment are used. Each cell operates independently of each other; however, their pools are common. Their most important advantage is that in case of failure, revision or maintenance, the cooling and circulation of water in the system continues even if the capacity is halved. Since the towers are identical, the cost and ease of stock is also an advantage. In addition, it is much easier to find low-power motors and keep them in stock.