A smoke exhaust fan is a mechanical device that quickly removes odors, high temperatures, and smoke gases produced during the food processing in a kitchen. The machine features excellent high-temperature resistance and high efficiency. The types of fans include centrifugal and axial fans, and the appropriate size of the machine is selected based on the space and the arrangement of the exhaust hood. The HTF series fire-resistant high-temperature smoke exhaust fans are products of the "Xinghuo" project, known for their excellent performance, good high-temperature resistance, high efficiency, less space occupation than centrifugal fans, and easy installation. The HTF fire fan boasts excellent high-temperature resistance: the fan test meets the requirements of the GBJ45-82 fire safety standards, with an internal control system that exceeds these standards, allowing continuous operation for over 60 minutes at 300°C and for 20 hours at a time at 100°C without damage. They are widely used in high-end residential buildings, ovens, underground parking garages, tunnels, and other locations. The performance listed in the performance table of the HTF fire fan represents the performance within the high-efficiency range, divided into five performance points by air volume. Selection should be based on the performance table. The qualified HTF fire fans produced have an allowable pressure difference of ±5% from the rated air volume, and the performance selection table is based on standard conditions, applicable to technical documents or order requirements.