Merv 13 Pleated Air Filter - 6" x 15" x 1" Quantity:12-pack You may know them as

You may know them as washable air or even permanent air filters

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

It is designed to inhibit growth of bacteria

these can be purchased in any conceivable size

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

Merv 13 Pleated Air Filter - 6" x 15" x 1" Quantity:12-pack You may know them asAny Kind of Filter's Extended Surface Pleated Filters outperform ordinary furnace filters with medium efficiency and are designed for lower pressure drop, and long service life which reduces HVAC equipment maintenance and energy costs. 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.