Furnace Air Filter - Indoor Filter Frame Kit W/Four Filters - One Year Supply - Patented Lifetime Warranty - Green Hospital Hepa Quality - For Home or Office 14-inch by 14-inch by 1-inch Hospital Quality Green Merv 8 Filter Pads - Patented Filter Frame with Life Time Warranty Reduces Your Carbon Footprint, Repeat Use Means Less Waste No Fiberglass Filaments - 3 Layers of Filtration Decreases Dust - Cleaner Home - Healthier Family No Washing - Simply, Discard and Replace