PP centrifugal fans operate based on the principle of converting kinetic energy into potential energy, utilizing high-speed rotating blades to accelerate the gas, then decelerate and change its direction, thereby converting kinetic energy into potential energy (pressure). The applications of PP centrifugal fans are extensive, and their various models and structures can be used in many different situations: such as in factories, mines, tunnels, cooling towers, vehicles, ships, and building ventilation, dust removal, and cooling; for boiler and industrial furnace ventilation and exhaust; cooling and ventilation in air conditioning equipment and household appliances; grain drying and selection; wind tunnel air sources, and air cushion ship inflation and propulsion, etc.