... contain substances that are harmful to the environment, poisonless, tasteless, energy saving, environment protection, easy installation and removel.3.Corrugated paper, subjected ... to form stereoscopic ventilating and cooling system, which is the most inexpensive and effective cooling equipment in sweltering fields. 11.The ... Mid East, Europe and USA, etc. 7090/5090 water cooled air cooler (Cooling pad)