Introduction to mixed flow smoke exhaust fan: 1. The fan mechanism is compact, easy to install, and reliable to operate: the fan has a smaller volume than the axial flow fan under the same air volume and pressure, can be directly connected to the air duct, horizontally or vertically installed, and is easy to operate and use; 2. Low noise: The casing of this fan has been specially designed to significantly reduce external noise. Under the working conditions of unit air volume and unit air pressure, the sound level can be reduced by 2-3dB (A) compared to A, and at lower speeds, higher fan pressure can be obtained. In the air supply and exhaust systems of industrial and mining enterprises and civil buildings, low-pressure centrifugal fans or high-pressure axial fans can be replaced without the need for extensive noise reduction measures. 3. Wide range of use: This series of products is divided into two models: single speed and dual speed. The installation angle of the fan can be changed according to different usage scenarios, and the number of blades and speed can be adjusted to meet its usage requirements.