The S&B Filters KF-1052 Cotton Air Filter is a high-flow, reusable filter designed to improve indoor air quality by removing impurities and pollutants. Made with paper filter media and a sturdy paper filter frame, this cleanable air filter is designed to last and effectively filter out airborne particles to ensure a healthier environment. With a pack of 1 filter included, this product is ideal for keeping your home or space clean and fresh.