The air humidity is the quantity of water vapour contained in the air at any one of the areas that have different proportions for each region. If the air humidity is low, water will cause more evaporation. The clothes will dry faster, but if they are exposed to air with high humidity, water will evaporate less. Clothes dry more slowly sweating While the water evaporation occurs, will cause the temperature of the environment due to the evaporation of water will absorb the heat from the things in themselves, such as evaporation temperature of wet dropping the meter termomiter . The temperature of the water in a small sore lower clay, etc. The water in the cold water blister over clay stored in another container, because the blister clay pore characteristics, water can evaporate out. So the temperature of the lower water blister Cold water over it in a clay blister it.