G4 plate primary effect filter how to distinguish between the front and back?

The problem of air quality has gradually been paid attention to by everyone, the prevention and control of air pollution has become a huge system project, the initial effect air filter for the current purification project is very widely used, we all know that when the filter uses composite materials, there will be positive and negative points, then, g4 plate initial effect filter has positive and negative points? What happens if you don't install it right?

General g4 plate filter positive and negative sides will be different, take the mesh folding filter, when the border does not do wind direction sign, we default galvanized mesh is the windward side, such a design has two reasons: when the air volume plays a supporting role, if the mesh is installed in the air surface, in the case of long-term ventilation, it may be separated from the filter paper, Cause damage. The G4 cotton is not positive or negative. Of course, in order to increase strength, you can also cover the net on both sides. Costs will rise accordingly.

Folding screen filter mainly uses the primary effect filter material, filter material composite metal support mesh, effectively increase the strength of the filter screen, at the same time, the frame selection of aluminum frame, galvanized frame, paper frame, etc., but also according to the actual needs of customers, designed into different sizes, different shapes.

g4 plate filter Features:

1, Outer frame: aluminum alloy, galvanized sheet, thickness: 17mm,21mm,25mm,46mm and other models.

2, filter material: high-quality chemical fiber non-woven filter material, large air volume, low resistance, large dust capacity.

3, filtration efficiency: 90%.

4, Filter level: G4 (EN779).

5, the use of surface rust treatment wire protection net, can be a good fixed protection filter material in use is not easy to damage.