First, in terms of how it works:

The pressure of the air discharged from the negative pressure fan is reduced to the outside of the room, the indoor air becomes thinner, forming a negative pressure zone, and the air flows into the compensation chamber due to the pressure difference. In the practical application of industrial plants, the negative pressure fan is concentrated on one side of the plant, and the air inlet is on the other side of the plant. The air forms convection from the air inlet to the negative pressure fan. In this process, the fan close to the door inlet remains closed, forcing the air from the air inlet into the compensating side door plant.

The appearance of the industrial big fan adopts unique road flow technology, waterproof, rain proof, special motor and direct structural maintenance to improve the function, simplify the structure and reduce maintenance costs. Airflow shutters, no power consumption, no switch, can effectively prevent rain and invasion. Planned installations do not occupy windless space and can be installed anywhere.

The advantages of negative pressure fan are:

1. Good quality: it is a negative pressure fan produced by introducing German technology.

2. It's very convenient. A manual shutter controls the extractor fan, which usually operates without lighting and ventilation.

3. Low investment: the negative pressure fan has large air volume and wide applicable area, accounting for one-fifth of the total investment in air conditioning.

4. Simple: The suction fan is simple to operate, convenient to install, low maintenance cost, without professional maintenance.

5. Durable and corrosion resistant: negative pressure fan adopts heavy aluminum die-casting blade, resistant to high temperature, aging and deformation.