A healthy home begins with cleaner air. Improve the air quality in your house by reducing the amount of airborne allergens with a Filtrete™ Allergen Defense Allergen Reduction Filter. Using electrostatic technology, this high-performance filter proactively captures dust, bacteria, germs, viruses, and allergens from the air. For maximum performance, replace your Filtrete™ Filter seasonally (every 90 days) to ensure you and your household are breathing cleaner air.