... ,600mm Thickness:100,150, 5090 greenhouse evaporative cooling pad evaporative cooling padModel no.: 5090 Features: 1) H ... aluminum alloy, PVC and galvanized boardCooling system is with its cooling pad paper. There is a ... the temperature of air going through the wet cooling pad paper is reduced. Through such treatment, ... hot air, exhausted by fans, and during cooling, the waste and dust in outdoor air are ...