Accumulair Carbon 16.25x21.25x1 (Actual Size) Odor eliminating Air Filter/Furnace Filter Actual size measures 16.25 x 21.25 x 0.75 Ideal applications include odors from cooking, new paint, new carpet, bathroom smells & pet odors Carbon impregnated disposable pleated panel filters A simple solution for controlling both odors and dust particles Lasts up to 90 days