Accumulair FO22X22X4A Carbon Odor Block 4 In. Filter, Pack Of 2

22x22x4 (Actual Size) Accumulair Carbon Odor Block 4-Inch Filter : <ul> <li>Carbon impregnated disposable pleated panel filters.</li> <li>Each filter lasts up to 3 months.</li> <li>A simple solution for controlling both odors and dust particles!</li> <li>Ideal applications include odors from cooking, new paint, new carpet, bathroom smells, cigarette smoke odor, pet odors.</li> <li>Can be installed in virtually any HVAC system without modifications.</li> </ul> Odorous gases and vapors are attracted to and held by the unique properties of the activated carbon material.