Filtrete - Allergen Defense 14 in. W X 24 in. H X 1 in. D 1000 MPR Pleated Air Filter 1 pk - Case of 4

Engineered with Filtrete 3-in-1 technology and a 1000 MPR (MERV 11) rating, this pleated allergen air filter enhances residential indoor air quality by capturing both large and microscopic particles as air circulates through your home’s central system. It helps reduce common airborne contaminants, including dust, lint, pollen, pet dander, mold spores, smoke, and smog, while maintaining airflow to support efficient furnace and AC performance.

This pleated allergen air filter is built to upgrade the performance of a standard HVAC system by capturing more airborne irritants every time your furnace or AC runs. Its electrostatically charged synthetic media carries a 1000 MPR (MERV 11) rating, which means it can capture many microparticles such as pet dander, smoke, and smog, in addition to larger allergens like lint, household dust, pollen, mold spores, dust‑mite debris, and tobacco.

Engineered for small HVAC returns, this 14 x 14 x 1-inch Filtrete Allergen Defense filter uses pleated electrostatic media with 3‑in‑1 technology to help clean recirculated air in residential furnaces and central AC systems. With a 1000 MPR (MERV 11) rating, it is designed to attract and capture microscopic particles such as pet dander, smoke, and smog, along with larger allergens.