1. Range (temperature difference): 5 or 10 centigrade degrees designed. More than 20 Celsius range is available; 2. Capacity: 6~1000WT(water ton, cubic meter per hour) for cell. Multi-cell available; 3. Approach: Suggesting more than 3 centigrade degree to wet-bulb Temp; 4. Shape: Spherical/ bottle neck /square/rectangle/polygonal are optional; 5. Flow type: Counter flow type/cross flow type/open circuit type/closed circuit type.
