Pad Refills (Pack of 6 Pads) - 12" x 18" x 3/4" Quantity:Default the more efficient a filter

the more efficient a filter is at removing particles

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

these can be purchased in any conceivable size

Grease Baffle Uses:

such as dust

Pad Refills (Pack of 6 Pads) - 12" x 18" x 3/4" Quantity:Default the more efficient a filterPACK 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.