According to mechanical ventilation products, ventilation equipment can be divided into FRP fan, fire smoke exhaust fan, mixed flow fan, centrifugal fan, negative pressure fan, explosion-proof fan, anti-corrosion fan, exhaust fan, exhaust fan and other products.

Ventilation, also known as ventilation, is to send enough fresh air into the indoor space by mechanical or natural methods, and discharge the dirty air that does not meet the sanitary requirements, so as to make the indoor air meet the sanitary requirements and the needs of the production process. All facilities for ventilation in buildings are collectively referred to as ventilation equipment.

Ventilation can be divided into general ventilation and local ventilation according to the scope. General ventilation, also known as dilution ventilation, is to ventilate the whole space. Local ventilation is to directly collect the polluted air at the place where the pollutants are generated and discharge it outdoors, or directly supply fresh air to the local space. Local ventilation has the advantages of good ventilation effect and air volume saving.