Merv 13 Pleated Air Filter - 23" x 26" x 1" Quantity:12-pack the more efficient a filter

the more efficient a filter is at removing particles

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these can be purchased in any conceivable size

Produces no ozone or aldehydes

such as dust

Merv 13 Pleated Air Filter - 23" x 26" 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.