Abstract: The invention concerns a removable impeller (7) designed to be integrated in a fan (1), in particular for controlled mechanical ventilation, and configured in the shape of a wheel provided with a plurality of blades (8) and equipped with locking clips to enable its being fixed on a hub. The invention is characterized in that it includes projecting transmitting clips, arranged proximate a central neck having an axis of revolution that is parallel to that of the wheel, and designed so as to enable the locking clips to be alternately engaged or released. The invention also concerns a fan including such an impeller.

Abstract: The invention concerns a removable impeller (7) designed to be integrated in a fan (1), in particular for controlled mechanical ventilation, and configured in the shape of a wheel provided with a plurality of blades (8) and equipped with locking means to enable its being fixed on a hub. The invention is characterized in that it comprises projecting transmitting means, arranged proximate a central neck whereof the axis of revolution is parallel to that of the wheel, and designed so as to enable the locking means to be alternately engaged or released. The invention also concerns a fan comprising such an impeller.