when warm air mass passes over cold air mass, the water vapor in the warm air mass will condense
sweat is condensation. cooling_air is climate_control. air_conditioning is cooling_air. pressurized_air is air. cooling_water is becoming. heat_of_condensation is latent_heat. dew is condensation. when_water is heated_becomes_water_vapor. air_mass is atmosphere. humidity is wet_air.