High Pressure Heatless Air Dryer consists of two towers filled with activated alumina and at a time one tower is under process and another tower is under regeneration simultaneously. The Air Dryer requires single phase power supply for operation and operates on an ambient working temperature. The Air Dryer can achieve dew point of - 40 degree C at atmospheric pressure and comes in a capacity of 10 NM3/ hr to 1000 NM3/ hr. High Pressure Heatless Air Dryer is made using quality grade raw material which ensures durability of use along with long lasting trouble free service.