Pad Refills (Pack of 6 Pads) - 19 1/2" x 29 1/2" x 1"PACK 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.

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

The "Practical Pleat" contains over 500% greater surface area than a MERV 10 one-inch pleat

Any Kind of Filter's Extended Surface Pleated Filters outperform ordinary furnace filters with medium efficiency and are designed for lower pressure drop

They are easy to clean by simply backwashing every month with cold water so you don‰۪t need expensive cleaners

This design enables A+2000 custom air filters to maintain performance over the years

oxidation and deterioration

Either way

we even have the odd sizes

the more efficient a filter is at removing particles

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

some just refer to them as electrostatic filters

Instead of face loading (particles captured on the outer surface of the filter)