Fire and smoke exhaust (ventilation) dual-purpose low noise centrifugal wind cabinet is our company to absorb advanced technology at home and abroad, combined with our company's careful development of the wind cabinet over the years to improve the fan pressure, air volume and other performance for optimization purpose designed and manufactured into the fan with ventilation and fire exhaust and smoke exhaust functions of the latest product, passed the "national fire equipment quality" testing center test. In line with GA211-1999 fire exhaust fan testing method JBITI0218-2001 fire exhaust fan technical conditions, and first passed China's national mandatory product 3C certification. The temperature in the medium is The test runs for more than 30 minutes under the high temperature condition of 280℃, and the operation is normal, which meets the requirements of GB50045(Code for Fire Protection Design of high-rise civil buildings). The fan is suitable for stadiums, exhibition centers, hotel office buildings, office buildings, color theaters, auditoriums, hospitals, shopping malls, high-rise residential basement (parking lot) factories and mining enterprises, large buildings and other indoor ventilation