A+2000 Washable Electrostatic Permanent Custom Air Filter - 18" x 20" 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 "Practical Pleat" media is up to 28 times more effective at capturing particles than standard fiberglass panel filters

Some of the other benefits of A+2000 custom air filters include the following

In general

This is a 5" MERV 10 HIGH PERFORMANCE AIR FILTER

oxidation and deterioration

The A+2000 line is easy to maintain with no need to buy oils or adhesives to enhance effectiveness

Includes one Frame and PACK of 6 pads

The permanent frame is constructed of space-age plastics that are resistant to corrosion

They are easy to install with custom air filters made to the sizes that you specify

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

Filtering inserts are shipped in an easily stored packet

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