evaporativecooling pad paper honey comb structure is a kind of special material, it'sworking principle is to "water evaporation absorbs the heat", anatural, physical phenomena, that is water under the action of gravity, fromthe down stream, in the wet curtain-shaped fiber surface corrugation theformation of water film, when the flow of air through the wet curtain, thewater film in the water will absorb heat in the air after the evaporation,carry away large amounts of latent heat, so that through the wet curtain airtemperature decreases, so as to achieve the purpose of cooling.