A+2000 Washable Electrostatic Permanent Custom Air Filter - 21 1/4" x 22 1/2" x 1" Quantity:Default Filtering inserts are anti-microbial and

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

than standard fiberglass filters purchased at retail outlets

In general

the A+2000 uses stage loading

A+2000 Washable Electrostatic Permanent Custom Air Filter - 21 1/4" x 22 1/2" x 1" Quantity:Default Filtering inserts are anti-microbial andYou 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