Swiveling duct fan with high pressure and volume output, for space-saving installation in the duct. Housing made of impact- and corrosion-resistant plastic, light gray, with molded mounting bracket for easy installation on the wall or ceiling and intake and exhaust nozzles corresponding to the standard duct diameters. By loosening the clamps, the fan unit with terminal box can be rotated into any position and removed for maintenance and cleaning. Delivery includes dowels and screws. Semi-axial impeller, eight spatially curved blades made of thermoplastic. Vibration-free operation thanks to dynamic balancing in accordance with quality level G 6.3 VDI 2060 and DIN ISO 1940. Closed, ball-bearing capacitor motor with moisture protection, insulation class F, for continuous operation. Maintenance-free and free from radio interference. Motor protection through thermal overload protection in the winding.