The Evaporative Air Cooler used with the Cellulose Cooling Pad as medium which is our company’s specialized production.( The Zhengda Cooling Pad takes imported materials as a foundation, is used by new generation high polymer material and the spatial crossing linking technology, has high absorbing water, high water resistant, anti-to get moldy and spoil, the service life long and so on merits.) Its principle of work is the natural physical phenomenon of “water evaporation absorption heat”. As the water under the action of gravity, from toward the lower reaches, forms the water film in the wet curtain corrugated textile fiber surface, (air blower) has the air convection through the artificial function, causes when the flowing the air passes through the wet curtain, in after the water film volunteer fire brigade absorbs in the air the quantity of heat evaporates, carries off the massive latent heats, achieves ventilates, the humidification, the temperature decrease, the environmental protection, the energy conservation goal, causes in the unit area the temperature to reduce obviously, builds one kind of person and the natural harmonious environment.