Merv 13 Pleated Air Filter - 18 3/8" x 21 1/4" x 2" Quantity:12-pack than standard fiberglass filters purchased

than standard fiberglass filters purchased at retail outlets

The filtering media consists of two layers of Stainless Steel roll formed baffles

allowing the grease to drain into through below

One way to overcome this problem is to increase the surface area of the filter media

some just refer to them as electrostatic filters

Merv 13 Pleated Air Filter - 18 3/8" x 21 1/4" x 2" Quantity:12-pack than standard fiberglass filters purchasedAny 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.