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A centrifugal fan works by using a motor to spin an impeller, which accelerates air from the center of the fan outwards using centrifugal force. This high-velocity air is then directed by the fan's casing, increasing its pressure before exiting at a 90-degree angle to the inlet. The combination of the impeller's rotation, centrifugal force, and the casing's shape creates a pressure difference that moves air through ducts and other system components.
