Permatron model IN is one of the best and oldest washable electrostatic air filters, ideally for HVAC applications that require durability because high velocity air flow is pushed through limited filter surface areas or high dirt load filtration while it is completely washable and easier to clean.
This environmentally friendly air filter features multiple layers of steel-framed electrostatic polypropylene media with separation between them; which also expanded wire support both front and back.
Will outperform and outlast a metal mesh panel filter in many applications with option of stainless steel frame that works well in wet, marine environments where mold and bacteria can be a concern.
Model IN (1" & 2") features an exclusive ACCUMULATOR CHAMBER® proven design has a three-stage filtration procedure that is incredibly effective because to its unitized filter bank design. Made
1/2", 1" and 2" deep for standard furnace sizes specified on the table below. Standard sized filters are
undersized 1/2" to fit properly with minimal effort.
Avg. Arrestance Efficiency . . . . . . . . . . . . . . . 78%.
Dust Holding Capacity . . . . . . . . . . . . . . . . 130 gm.
Initial Air Flow Resistance . . . . . . . . . . . . 0.11" w.g.
Available in a 1/2" , 1" or 2" thick galvanized steel frame; stainless steel or aluminum frame
Contact us for a custom size air filter.
| Standard Sizes Available |
| 10 x 20 | 12 x 30 | 14 x 25 | 16 x 24 | 18 x 24 | 20 x 24 |
| 12 x 12 | 12 x 36 | 14 x 30 | 16 x 25 | 18 x 25 | 20 x 25 |
| 12 x 20 | 14 x 20 | 15 x 20 | 18 x 18 | 18 x 30 | 20 x 30 |
| 12 x 24 | 14 x 24 | 16 x 20 | 18 x 20 | 20 x 20 | 24 x 24 |
How the Accumulator Chamber® Works
Model IN (1" & 2") utilizes electrostatically charged fabric panels separated by two unique Accumulator Chamber produces a very effective three-stage air filtration process for residential applications.
The prefilter fabrics electrostatic ability enhances filtration by attracting and holding airborne particulates onto the surface like a magnet. Air flow maintains the prefilter static electricity and once particulates build up, it forces them to break off and collect in the Accumulator Chamber. Within the chamber the turbulence and electrostatic force causes agglomeration into even larger particulates that are too large to pass through the second panel.
The after filter (back panel) attracts and holds particles that escape the prefilter or do not respond to an
electrostatic charge.
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