Long Time Electrets Pre Air Filter

 Characteristics

When a unique fiber having special characteristics is used to make a non-woven filter, permanent static electricity is generated. This fiber successfully captures minute dust with its high attraction of static electricity over a long time. Its capturing efficiency is high and it can thus become material for long-time electrets air filtering.

Because the fiber has attraction for static electricity, when the dust of the air is filtered, dust will be accumulated on the surface of the fiber and also dust spreading is more well-distributed than with other ordinary static electricity filtering material. So the speed of its damage is much slower. Relatively, the use of filtering material can last longer.

Long time electrets type and non-woven filtering material has a gate type from loose to intensive and its double structure. It is different from the single structure of other non-static electricity filtering material. When dust is filtered, it can enter inside filtering material and accumulate and spread widely. The filtering material is efficient and also its use frequency can be high ¡V more importantly, its speed of damage is low.

 Relevant Picture and Document

Relevant pictures: Filter Performance, Material Performance

 Dimension and Specification

Nominal size
(Inch W-H-D)
Actual size(Inch W-H-D) Air volume(CFM) Pressure loss Filter material size(Sq.Ft.) Folds of every meter/
Filter material area
of every square meter
300fpm 500fpm 300fpm 300fpm
12x24x1 23.43x11.38x0.88 600 1000 0.14 0.32 4.351 14/2.187
16x20x1 15.40x19.37x0.88 667 1111 0.14 0.32 4.670 14/2.187
16x25x1 15.40x24.37x0.88 833 1389 0.14 0.32 5.875 14/2.187
20x20x1 19.49x19.49x0.88 833 1389 0.14 0.32 5.783 14/2.187
20x24x1 19.49x23.45x0.88 1000 1667 0.14 0.32 6.592 14/2.187
20x25x1 19.49x24.37x0.88 1042 1736 0.14 0.32 7.232 14/2.187
24x24x1 23.45x23.45x0.88 1200 2000 0.14 0.32 8.748 14/2.187
12x24x2 23.43x11.38x1.75 600 1000 0.11 0.25 5.922 10/2.970
16x20x2 15.40x19.37x1.75 667 1111 0.11 0.25 6.834 10/2.970
16x25x2 15.40x24.37x1.75 833 1389 0.11 0.25 8.598 10/2.970
20x20x2 19.49x19.49x1.75 833 1389 0.11 0.25 8.828 10/2.970
20x24x2 19.49x23.45x1.75 1000 1667 0.11 0.25 10.611 10/2.970
20x25x2 19.49x24.37x1.75 1042 1736 0.11 0.25 11.039 10/2.970
24x24x2 23.45x23.45x1.75 1200 2000 0.11 0.25 11.879 10/2.970
24x24x4 23.45x23.45x3.85 1200 2000 0.10 0.20 22.876 9/5.719
25x29x4 24.37x28.38x3.85 1455 2424 0.10 0.20 26.512 9/5.719
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