Merv 11 Pleated Air Filter - 20" x 22 1/4" x 1" Quantity:12-pack the more efficient a filter

the more efficient a filter is at removing particles

The secret behind the A+2000‰۪s custom air filters performance is the patented stage loading/peak and valley design

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

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

Merv 11 Pleated Air Filter - 20" x 22 1/4" x 1" Quantity:12-pack the more efficient a filterAny 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.