Breathe Fresh, Live Fresh! 🌬️ Experience 25x better odor removal than standard filters! Traps lint, pollen, dust, and pet dander effortlessly. Exclusive 3M technology ensures optimal airflow. Perfect for your furnace, AC, or HVAC system. Enjoy cleaner air for up to 3 months with each filter. MERV 11 rating Odor reduction 3-in-1 technology The Filtrete 20x25x1 Air Filter, MPR 1200, MERV 11, is engineered to provide superior allergen defense and odor reduction. With a unique active carbon layer, it effectively eliminates pet smells, smoke, and other unwanted odors, while its advanced filtration technology captures a wide range of airborne particles. Designed for easy installation and compatibility with various HVAC systems, this filter ensures cleaner air for your home for up to three months.