SKIRON’s fan sections are manufactured from a aluminum body, galvanized plate taps with an interior layer of sound-absorbing material 10 mm thick for the direct movement of the fan and a 25mm thick resembling “egg-cup” for those moving through pulleys and driving belts. They have centrifugal fans, with forward curved blades or backward curved blades that move direct from one-phase electric motors or through driving-belts or pulleys, from three-phase electric- motors. Those moving direct exist in the market, while those getting exterior power are manufactured according to the demands. They are appropriate for restaurants and kitchens’ hoods.