A+2000 Washable Electrostatic Permanent Custom Air Filter - 12" x 17" 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

Filtering inserts are anti-microbial and are more efficient in capturing particles

The "Practical Pleat" contains over 500% greater surface area than a MERV 10 one-inch pleat

than standard fiberglass filters purchased at retail outlets

so it can provide a lifetime of dependable service

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with each stage capturing progressively smaller particles inside the filter

oxidation and deterioration

we even have the odd sizes

And there are no metal parts that could lead to corrosion or oxidation within the filter

degrade and restrict air flow

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

some just refer to them as electrostatic filters