Filtrete - 12 in. W X 30 in. H X 1 in. D Polypropylene 1000 MPR Pleated Allergen Air Filter 1 pk

Designed for continuous whole‑home use, this pleated allergen filter helps clean circulated air by capturing common particles such as dust, lint, pollen, and pet dander as it passes through your heating and cooling system, contributing to a fresher indoor environment when replaced about every three months. The electrostatically charged polypropylene media, rated at 1000 MPR (approximately MERV 11).