1. High smoke exhaust efficiency: Centrifugal fans are usually used as power sources, with large air volume and high air pressure, which can quickly and effectively exhaust indoor smoke, improve indoor air circulation in a short period of time, timely discharge excess heat and moisture, and create favorable conditions for personnel evacuation and fire rescue.                                                          
2. Good high temperature resistance: Some models can emit high temperature smoke above 280 ℃ and can run continuously for more than 100 minutes. The motor and transmission components are external to avoid high temperature effects and ensure reliable operation in emergency situations such as fires.                                    
3. Low noise and low vibration: The fan blades are designed with precision, and the interior of the box is usually equipped with mufflers or sound-absorbing materials, which can effectively reduce operating noise and minimize the impact on the surrounding environment. At the same time, the vibration is small, the operation is stable, and equipment losses can be reduced.                                 
4. Compact and beautiful structure: The box body adopts a frame and box board assembly design. The frame is mostly stretched by a metal cold bending forming unit in one go. The box board is a composite board structure, and the inner layer is made of sound-absorbing material. The overall structure is compact and occupies a small area. Different import and export directions can also be provided according to the needs to meet various installation scenarios.                                      
5. Easy installation and maintenance: Adopting a fully metal detachable frame, it supports various installation methods such as suspended ceiling and floor standing, making it easy to disassemble and install on site, flexible in placement, and convenient for later maintenance and repair.
6. Air purification optional: Some smoke exhaust fan cases can be equipped with different levels of air filters, which can effectively filter out particles such as dust and pollen in the air. Under non fire conditions, it can be used for daily ventilation and air purification, providing clean indoor air. 7. Safe and reliable operation: Some smoke exhaust fan cases are equipped with integrated external junction boxes, which have anti leakage protection functions and are tightly sealed, effectively preventing safety accidents such as leakage and ensuring the safe operation of equipment.