The Östberg channel CK XXX radial fans transport air along the duct axis, similarly to axial fans, but thanks to their design they provide better flow characteristics (pressure and performance). Compact design enables quick and easy installation. Available diameters correspond to the diameter of the ventilation ducts commonly found on the market. Duct fans can work both as sucking and blowing fans depending on where they are located in the ventilation system. Thanks to their advantages they are widely used in the ventilation of both residential (bathroom ventilator) and commercial ventilating: commercial premises, warehouses, workshops.