Polypropylene cabinet, light, corrosion-resistant, UV-resistant.Patented water distributors avoiding blocking Large evaporative surface area with above 85% saturation efficiency.Durable aluminum sealed motor, high heat dissipation, low rising temperature, IP55.Auto timing cleaning function, ensuring clean water Cover distance: 20m for AZL 16 -Z, 25m for AZL 18- Z.Top discharge, side discharge and down discharge optional.Group control optional