Mikropor MCY Cycling Thermal Mass dryers are highly energy efficient and are approved on the UK Government's ETL (Energy Technology List).

Instead of using an air to air heat exchanger, MCY dryers use a liquid (water/glycol) mix in a tank to exchange heat between the hot compressed air and the much cooler water/glycol mix. This results in a refrigerant dryer that is much more energy efficient than a standard air/air refrigerant dryer.  Models up to 2775 m3/h come complete with two integrated internal filters (pre & post) included in the price of the dryer.