A+2000 Washable Electrostatic Permanent Custom Air Filter - 22 3/4" x 22 3/4" 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

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UL/ULC listed

In general

This is a 5" MERV 10 HIGH PERFORMANCE AIR FILTER

with each stage capturing progressively smaller particles inside the filter

such as dust

mold and other fungi

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

Water resistant lamp connection

the A+2000 uses stage loading

installation and service is simple

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