Transport radial fans are applied for air-supply- or extraction ventilation of rooms and workplaces. Both, they can be used for general ventilation and local extraction, within this for conveying small size wood chips and dusts arising during technological processing of such materials as wood, paper, leather, fabric, plastic. In these applications FAST-P serves as a transport fan. Additionally, FAST-P can be applied for drying the humid rooms by forcing multiple air changes and by directing the outlet air stream directly onto the humid wall. The construction meets the requirements of the ErP 2009/125/EC Directive.