Filtrete - 14 in. W X 20 in. H X 1 in. D Synthetic 2 MERV Flat Panel Filter 2 pk - Case of 24

Here’s the 3M Filtrete 12 in. W X 24 in. H X 1 in. D Polypropylene 2 MERV Flat Panel Filter 2 pk – a must-have for any household looking to improve their indoor air quality. These flat panel filters are made from high-quality polypropylene material and have a MERV rating of 2, ensuring maximum filtration of dust, pollen, and other small particles.

This 14x20x1 Allergen Defense filter in Filtrete’s 1000 MPR (MERV 11) tier uses electrostatically charged polypropylene media with 3‑in‑1 technology to help capture countless microparticles—such as pet dander, smoke and smog—while also trapping larger particles like lint, household dust, pollen, mold spores and dust‑mite debris, providing a noticeable upgrade over fiberglass or basic pleated filters while maintaining good airflow when changed every three months.

Engineered for homes that want stronger protection from airborne allergens, this ultra-allergen filter helps your HVAC system capture a broad mix of fine and larger particles each time it runs. Its electrostatically charged synthetic media carries a 1500 MPR (MERV 12) rating and uses Filtrete 3‑in‑1 technology to draw in and trap countless microparticles such as pet dander, smoke, bacteria, and up to about half of airborne virus‑carrying particles.