A healthy home begins with cleaner air. Improve the air quality in your house by reducing the amount of airborne allergens with a Filtrete™ Dual-Action Allergen Plus 2X Dust Defense Filter. This air filter attracts and captures microscopic allergens like smoke and smog particles, and large allergens like mold spores and pollen, with enhanced dust trapping technology. For maximum performance, replace your Filtrete™ Filter seasonally (every 90 days) to ensure you and your household are breathing cleaner air.