Atomic 16x25x5 MERV 11 Trion Compatible Replacement Furnace Filter- 6 Pack AIR QUALITY: Protects the air in your home ENERGY SAVING: Pleated for increased particle holding capacity and air flow effieciency SYSTEM PROTECTION: Keeps HVAC coils free of dust and allows it to operate at optimal efficiency MERV 11: Allergy Filters contaminants like dust, pollen, mold and pet dander SUPERIOR QUALITY: Made in the USA from 100% high performance mechanical synthetic media