A+2000 Washable Electrostatic Permanent Custom Air Filter - 20" x 36" x 1" Quantity:Default In general

In general

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

degrade and restrict air flow

the more efficient a filter is at removing particles

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

A+2000 Washable Electrostatic Permanent Custom Air Filter - 20" x 36" x 1" Quantity:Default In generalYou 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