The plate type G4 initial efficiency filter is indispensable in general air conditioning systems. It is the main force of filtration, with a wide variety of types, mainly meeting the requirements of high air volume and low resistance. The conventional initial efficiency also includes G1, G2, and G3, which can be selected according to different usage environments and requirements. The specific usage characteristics are explained in detail by Changrui air filter manufacturer:

The plate type G4 primary filter performs better than the G3 filter because the resistance of the G4 filter is different from that of the G3 filter. The greater the resistance, the smaller the dust particles targeted. The G4 filter has a filtration efficiency of 40% -60% for dust particles larger than 2 microns.

There are three common depth sizes of plate type G4 primary filters: 20mm, 45mm, and 96mm. Their filtration area is usually 5 times that of plate filters, which is longer than the service time of glass fiber filters or artificial silk filters. The filter material used is processed using special needle punching technology to form a gradient structure. The filter has the characteristics of low pressure loss, high dust removal rate, and long service life. The primary filter can be directly used, It can also serve as a primary filter to protect the high-efficiency filter at the rear of the air conditioning system.

The plate type G4 primary filter is an environmentally friendly filter that not only purifies the air during use, but also does not affect people's physical and mental health. Secondly, the primary filter produces low noise during operation, does not cause noise pollution, and does not have adverse effects on the environment when used in homes, offices, and industrial production. The filtering effect is relatively good.