If you want a smoke exhaust ventilator, you can choose from the following options:

①SWF low-noise mixed-flow smoke exhaust ventilator, which is characterized by low noise, good air volume and, most importantly, not too expensive;

②HTFC dual-purpose low-noise cabinet centrifugal fan for fire fighting and ventilation. This fan can not only exhaust smoke for fire fighting, but also ventilate, and it has low noise and good air volume, but the cost is relatively high!

If you just want to ventilate, you can choose several kinds:

①SF energy-saving and low-noise axial fan, which is used for ventilation, with low noise and energy saving, and the air volume is not very large, but it is generally enough, not a fire-fighting smoke exhaust fan, and the cost is low;

②DZ low-noise and energy-saving axial fan, which is similar to SF, but with less noise, better material and higher relative cost.

the following are sample drawings of SWF and HTFC: