Swiveling duct fan with high pressure and volume performance for space-saving installation in the duct system. Housing made of impact- and corrosion-resistant plastic in light gray, with an integrated mounting bracket for easy installation on walls or ceilings, as well as intake and exhaust nozzles corresponding to standard duct diameters. By loosening the clamping brackets, the fan unit with terminal box can be rotated to any position and removed for maintenance and cleaning. Delivery includes dowels and screws. Semi-axial impeller with eight spatially curved blades made of thermoplastic. Vibration-free operation due to dynamic balancing according to quality grade 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 interference-free. Motor protection through thermal overload protection in the winding.