A+2000 Washable Electrostatic Permanent Custom Air Filter - 20" x 31 1/2" 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

than standard fiberglass filters purchased at retail outlets

oxidation and deterioration

Either way

the more efficient a filter is at removing particles

from the air stream

if not you can measure it or check the HVAC unit and the owner‰۪s manual

some just refer to them as electrostatic filters

Filtering inserts are shipped in an easily stored packet

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

high quality Air Filters to you