Weathered the summer, make yourself some cool cooling principle "220V AC Cooling Fan" cooling system: Wet curtain cooling technology is the main equipment of industrial fans and curtain, the use of the principle of negative pressure ventilation and evaporative cooling water cooling. before explaining the principle of wet curtain cooling system to cool that we first understand the two terms: one is negative, and the other is evaporative cooling. "220V AC Cooling Fan" cooling system technology through regular maintenance, the winter fans do not want to put the best pool of water and wrapped with plastic sheeting live face, wet curtain cooling system from invention to now have 30 years of history, "220V AC Cooling Fan"efficiency and life support equipment and products have been maturing, and after years of popularity, wet curtain cooling has been recognized as an effective way to cool in summer. There is a saying, early bird starting food to eat, surely we should understand. Else I will not say more.