Pad Refills (Pack of 6 Pads) - 20 1/4" x 21 3/4" x 1" Quantity:Default It is designed to inhibit

It is designed to inhibit growth of bacteria

precisely designed to prevent flame from penetrating the filters and as the grease laden air passes through the filter is collects the grease

some just refer to them as electrostatic filters

No screws need

Pad Refills (Pack of 6 Pads) - 20 1/4" x 21 3/4" x 1" Quantity:Default It is designed to inhibitPACK 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.