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 Pollen 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 bes a little bit cleaner. -The higher the MPR, the more microparticles--such as pollen, pet dander, smoke, bacteria and viruses--your filter will capture from the air passing through it -CHANGE FILTER AT LEAST EVERY 90 DAYS for optimal performance of your heating and cooling system or HVAC system -A dirty filter will slow down air flow and make the system work harder to keep you warm or cool--wasting energy. Sign-up for a filter change reminder program (www.filtrete.com/ChangeReminders) that works for you! -FOR RESIDENTIAL use only -CREATE A CHANGE COUNTDOWN in the Filtrete Smart app. Simply use the app to scan the barcode on your filter’s packaging, then choose 30, 60 or 90 days for your replacement countdown. When the lifespan is up, you’ll get a notification to change your filter -Manufacturer Part Number: 9884DC-6 Gender: unisex.