Pad and Frame Air Filter (1 Frame and 6 Pads) - 12" x 18" x 1" Quantity:Default A higher MERV rating means

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

Some of the other benefits of A+2000 custom air filters include the following

In general

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the greater it's resistance to airflow

Pad and Frame Air Filter (1 Frame and 6 Pads) - 12" x 18" x 1" Quantity:Default A higher MERV rating meansIncludes one Frame and PACK of 6 pads The Pad and Frame Air Filter involves a permanent frame and replaceable filtration pad inserts. The permanent frame is constructed of space age plastics that are resistant to corrosion, oxidation and deterioration. 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