Filter material of products:
The fiber with special rolling needle technique processing, make its form gradually layer type of structure. So filter with high amount of dust catcher, longer service life features. Around the screen in a special professional adhesive glue with frame, can prevent the air leak, or because of wind resistance pressure, causing damage occurs.

Product features:
* screen is divided into depth 1 inch, 2 inch, 4 inch three sizes.
* as 5 times as the filter area is generally flat screen.
* it than ordinary glass fibres or man-made fiber filter has a longer service life and high filtering efficiency.
* general coarse filtration of air conditioning system, director of the bag type and the service life of HEPA filter.

Tie-in frame:
With strong waterproof board, used to fixed folded filter material. The design of the frame on the diagonal line to provide maximum filtering area, and makes the internal closely adhere to the filter material on the outer box.

Scope of application:
Can be used directly, or as a primary filter. To protect the air conditioning system in the back of the high efficiency filter.; Electronics industry, pharmaceutical industry, semiconductor industry. All factories, processing the coarse dust filter.