Pad Refills (Pack of 6 Pads) - 22" x 28" x 1" Quantity:Default the "A+2000" brand Permanent Washable

the "A+2000" brand Permanent Washable Electrostatic custom air filters are truly quality products

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with each stage capturing progressively smaller particles inside the filter

Instead of face loading (particles captured on the outer surface of the filter)

The Pad and Frame Air Filter involves a permanent frame and replaceable filtration pad inserts

Pad Refills (Pack of 6 Pads) - 22" x 28" x 1" Quantity:Default the "A+2000" brand Permanent WashablePACK of 6 pads for Pad and Frame Air Filters Filtering inserts are anti microbial and are more efficient in capturing particles, such as dust, ragweed, pollen, etc., from the air stream, than standard fiberglass filters purchased at retail outlets. Filtering inserts are shipped in an easily stored packet.