Medify Air 16x25x4 12 Air Pleated Filter 95% Particles Air Cleaning ( 12, 2-Pack)

: This 16x25x4 replacement air filter fits your furnace, air conditioner, heat pump, or system (actual size: 15.67" x 24.6" x 4.29") for cleaner air. Features a 12 rating and filtration 12 with : The -Type filter protects your home, removing 95% of airborne particles impacting the air flow of a furnace or . : If you have pets or allergies, 11 is a great baseline. Homes with smokers or a wood-burning fireplace should pick 12-13. 14+ are generally for hospitals, schools, and environments with high air quality requirements.