The Boreas product line is designed for treating larger air flow volumes and continues to implement the concept of demand-based drying. This refrigeration dryer demonstrates that combining a proven concept and energy saving strategies while using frequency converters for controlling compressor speeds is an ideal solution. The Ultratroc BOREAS is designed for compressed air volumes between 1,800 m3/h and 28,500 m3/h and also excels through very low pressure losses and low power consumption, which keeps operating costs to a minimum.