The new scythe glidestream 120 series combines the proven quotsmall hub and wide bladequot design concept with neat new ideas grooved fan blades contributing to even less air resistance and mounting holes fitted with rubber inlays in order to minimise unpleasant vibration noise this series comes in many different rotation speeds and so offers a suitable fan for various needs features has mounting holes fitted with rubber inlays to keep unpleasant vibration noise at a minimum grooved fan