This filter helps capture particles including lint, pollen, dust and pet dander. You run a tight ship at home, from floor to ceiling--and everywhere in between. Unfortunately, ordinary home non-electrostatic air filters aren't super effective at capturing unwanted particles. Good News - The unique design of the electrostatically charged Filtrete Dust, Pollen and Pet Dander Air Filter attracts--and traps--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.