The HKF series centrifugal fire smoke exhaust fan is a multi-blade cabinet unit designed to minimize pressure loss. It features a specially engineered single-plate backward-inclined impeller. This series has been inspected and certified by the fire product qualification assessment center of the National Emergency Management Department. These centrifugal fans can operate safely for more than 30 minutes under high-temperature conditions reaching 280°C. When the gas temperature is ≤120°C, the fan can be used for extended periods. It is suitable for fire smoke exhaust and ventilation applications in high-rise civil buildings.