Compressed air dryers are special types of filter systems that are specifically designed to remove the water that is inherent in compressed air.

A compressed air dryer is a equipment designed to separate water vapor or moisture (de-humidify) from industrial process air. In the typical system, a compressor draws in humid air and compresses it, which raises the air temperature and then cooling the air condensing water vapor out of the unit.

Dryers are used in food, pharmaceutical, agricultural, sugar, pulp and paper, textiles, wood, metallurgical, metal fabrication, and automotive industries. The difference between the various types of dryers is based on the mechanism used to remove moisture as well as the many different sizes and capacities.