Nordic Pure 12x30x1 Pure Baking Soda Odor Deodorizing Pleated AC Furnace Air Filters, Box of 3 Actual Size of Air Filter: 11 7/8 x 29 7/8 x 3/4 (11.88 x 29.88 x 0.75) inches Natural, eco-friendly baking soda media with no added fragrances or chemicals All Nordic Pure air filters are electrostatically charged for maximum performance MERV 8 media traps strong smells, allergens, dust, mold spores, pollen and pet dander Made in the USA