3M Filtrete 20 In. x 30 In. x 1 In. Dust Reduction 300 MPR Furnace Filter

You run a tight ship at home, from floor to ceiling — and everywhere in between. Unfortunately, ordinary home non-electrostatic air filters arent super effective at capturing unwanted particles. GOOD NEWS: The unique design of the electrostatically charged Filtrete Basic Dust Air Filter attracts — and trap –more particles from your air through your heating and cooling system, making quality control a breeze. With each cycle through the filter, your indoor air becomes a little bit cleaner.