The small fan has an air conduction housing (2) of plastic, in which an impeller (1) is rotatably supported. It is designed as a meridian-accelerated fan. The blades (1a) of the impeller (1) are not twisted and have the same angle of pitch over the entire blade length. The leading edges of the impeller (1b) and the front side of the hub (1c) as well as the front side of the housing (2d) lie approximately in the same plane. In contrast to axial fans, the meridian-accelerated fan has a higher power density along with a lower noise development.