Find here Refrigerated Air Dryers, Refrigerant Air Dryer manufacturers, suppliers & exporters in India. Get contact details & address of companies manufacturing... Most air-cooled aftercoolers are sized to cool the compressed air to within 15°F to 20°F of ambient cooling air temperature (approach temperature). As the compressed air cools, up to 75% of the water vapor present condenses to a liquid and can be removed from the system.