The negative pressure fan is a device that utilizes the principle of natural air convection and combines its unique structural design to accelerate and transform any air in parallel direction into a vertical flow of air from bottom to top to improve the ventilation effect of the indoor ventilation. It does not require electricity, no noise, can operate for a long time, and discharges hot air, smoke, odor, water vapor, etc. in the room. The specific advantages are as follows:

   

    1. Free of electricity, use the temperature difference and natural wind to make the negative pressure fan rotate. It can easily drive the turbine blades to rotate continuously for 365 days in a row without the breeze or the indoor and outdoor temperature difference. No electricity is needed at all. High sensitivity and saving a large amount of running cost;

    2, the negative pressure fan has a long service life, at least for more than ten years, and benefits for more than ten years;

   3, easy to install, negative pressure fan without motor, no power consumption, no noise, small size, light weight, high exhaust efficiency, easy to install. Save you a lot of labor and materials:

    4, maintenance-free maintenance-free, the negative pressure fan uses a complete set of fully sealed high-grade bearings, no lubrication, sturdy and durable.

    5, high efficiency, negative pressure fan requires only a small amount of wind, it is very effective to improve the working environment of the factory and improve work efficiency. It can bring you fresh air convection, remove hot air, exhaust gas or smelly air.

    6, wide-ranging, negative pressure fan is widely used in agriculture, animal husbandry, industry, public places and other industries, making important contributions to improving the environment.