... use Product Item No.JB-1100, Top discharge Evaporative air cooler(air cooling system)has been widely used in civil house,factory,greenhouse ... 12000m3/h to 18000 m3/h, with top or bottom air outlet. Environment friendly.No refrigation gases and no compressor are needed. · Allowed ... ,please feel free to contact us by email or telephone. air cooling system for civil house,factory,farm,greenhouse use