The DS-M series high-eficiency adsorption compressed air dryer achieves drying effect through the pressure swing adsorption principle ofdesiccants, Due to the fact that the ability of air to contain water vapor is inversely proportional to pressure, a portion of the air (calledregenerated gas) after drying is depressurized and expanded to atmospheric pressure. This pressure change makes the expanded air drier,and then it flows through the desiccant layer that has not been connected to the airlow and needs to be regenerated (i.e. the drying towerthat has absorbed enough water vapor,. The dried regenerated gas sucks out the moisture in the desiccant and brings it out of the dryer toachieve dehumidification. Two tower cycle operation, no heat source required, continuously providing dry compressed air to the user's gassystem