Filtrete - 24 in. W X 18 in. H X 1 in. D Polyester 1000 MPR Pleated Allergen Air Filter 1 pk

This pleated air filter is designed to help improve indoor air quality by capturing common airborne particles such as dust, pollen, pet dander, lint, and mold spores. The electrostatic polypropylene media enhances particle attraction while maintaining relatively low airflow resistance for compatible HVAC systems. It is intended for regular replacement rather than cleaning and works best when changed every one to three months, depending on household conditions and system usage.

Built for large residential returns, this 24 x 24 x 1-inch Filtrete Allergen Defense filter uses pleated electrostatic media with 3‑in‑1 technology to clean recirculated air in your furnace or central AC system. With a 1000 MPR (MERV 11) rating, it is engineered to attract and capture microscopic particles like pet dander, smoke, and smog, along with larger allergens such as lint, household dust, pollen, and mold spores.

Designed for households seeking enhanced allergen control, this pleated air filter works within standard HVAC systems to capture a higher percentage of fine airborne particles. Its electrostatically charged polypropylene media carries a 1500 MPR (about MERV 12) rating, enabling it to trap microscopic material such as pet dander, smoke, smog, bacteria, and many virus‑carrying particles, along with common contaminants like lint, dust, pollen, and mold spores.