Air output: 3000 cfm. Dimensions in mm (upright):(H)625 x (D)225 x (W)550. Weight: 10 kg. Colour: Graphite. Speed control: Infinitely variable from zero - 1350 rpm. Average running current approx. 1A. Average running load approx. 250W. Typical noise levels (1m, 90 from air stream): 40dBA (low speed), 56dBA (high speed).