The PDAD is a cold-regenerating adsorption dryer for the defined and safe reduction of the pressure dew point at high flow rates for decentralized compressed air drying. The use of adsorption dryers is always necessary when pressure dew points below -20 °C must be reliably reached and no moisture is allowed to condense from the air under any circumstances. It is suitable both for use as an individual device and for direct integration into existing MSB6 service unit combinations. The PDAD is the optimal solution for dry and clean compressed air. The pressure dew point is adjustable to -40 °C or -70 °C (at reduced flow rate). The flow rate is up to 2,400 L/min depending on the size and pressure dew point requirement.