Renew your home or office with this Filtrete Replacement Filter. This filter captures microscopic allergens like dust, smoke and smog particles, as well as large allergens like mold spores and pet dander from the air passing through the filter. A built-in activated carbon filter also helps reduce odors. Filtrete air cleaning filters snap easily into place. Simply remove your used air filter from your air cleaner and attach the new filter in seconds. For optimum performance, change your filter every 90 days or sooner, depending on the setting. If you have pets or smokers in your home or office, you should consider changing your filter more frequently. Similarly, for times when there is a lot of construction dust or allergens in the air, you can maximize performance by replacing your filter more often. Filtrete filters help you breathe easier by pulling in particles like mold and allergens without limiting airflow. Unlike other air filters which can restrict airflow, Filtrete air filters pull in and trap particles while maximizing clean air circulation. Help improve your indoor air quality by capturing allergens and holding two times more dust. Keep the air in your home or office clean and healthy with filters for your heating and cooling system. A fresher, cleaner home is a happier home.