A+2000 Washable Electrostatic Permanent Custom Air Filter - 20" x 36 7/8" x 1"You may know them as washable air or even permanent air filters; some just refer to them as electrostatic filters. Either way, the "A+2000" brand Permanent Washable Electrostatic custom air filters are truly quality products, built to last a lifetime. Unlike some permanent custom air filters, the A+2000 uses no foam that may clog, degrade and restrict air flow, so it can provide a lifetime of dependable service. And there are no metal parts that could

The secret behind the A+2000‰۪s custom air filters performance is the patented stage loading/peak and valley design

A higher MERV rating means that the air filter that you are about to purchase possesses a higher amount impurity filtration ability than your ordinary filter

The "Practical Pleat" media is up to 28 times more effective at capturing particles than standard fiberglass panel filters

This is a 5" MERV 10 HIGH PERFORMANCE AIR FILTER

Any Kind of Filter's Extended Surface Pleated Filters outperform ordinary furnace filters with medium efficiency and are designed for lower pressure drop

The Pad and Frame Air Filter involves a permanent frame and replaceable filtration pad inserts

oxidation and deterioration

Includes one Frame and PACK of 6 pads

and the greater the pressure drop it creates

some just refer to them as electrostatic filters

One way to overcome this problem is to increase the surface area of the filter media

Instead of face loading (particles captured on the outer surface of the filter)