1, Completely environmentally friendly products: it is no compressor, no cold coal, pollution-free environmentally friendly products. It is using all the cool fresh air evaporative cooling principle and outdoor and indoor ventilation cooling convection of air so as to achieve our purpose. 2, Low running cost, quick withdraw investment: compared with the traditional air conditioning compressor series, power consumption is only 1/8-1/10. 3, The cooling effect is obvious: in humid areas, the cooling effect can reach 5-9 degree. In special hot spaces, dry regions, cooling rate can reach about 10 to 15 degree. 4, Keep indoor air clean, health: doors and Windows open for ventilation is one of the features of evaporative air conditioner, one hundred percent of the fresh air replacement always keep the people in the environment of nature. Traditional air conditioning does not adapt to the foul air from outside. 5, Easy maintenance and installation: simply system, quick installation, maintenance, doesn't need professional maintenance. 6, Good for skin. 7, Low noise, small vibration can let us get fresh breeze unconsciously.