This centrifugal fan features high efficiency, low rotational speed, and quiet operation. It incorporates an advanced impeller structure, a logarithmic spiral scroll casing, and a refined design that results in minimal vibration and easy operation. The unit is suitable for ventilation and oil-fume exhaust in restaurants, kitchens, and air conditioning systems, as well as for ventilation in mining facilities. The medium being moved consists of air or other non-self-igniting, non-explosive gases that are not harmful to humans. The transported air must be free of adhesive materials, with dust and particulate content not exceeding 150 mg/m³, and operating temperatures remaining at or below 80°C.