The Honeywell HRF-C1 Replacement HEPA Filter-C is a high-efficiency filter designed for Honeywell air purifiers to improve indoor air quality. It captures up to 99.97% of airborne particles, including dust, pollen, pet dander, and smoke, ensuring cleaner, healthier airflow. https://www.partshnc.com/hrf-c1-honeywell-replacement-hepa-filter-c