The Honeywell HRF-ARVP300 High-Efficiency Particulate Air Filter Kit for HPA300S is an essential component that enhances indoor air quality. This High-Efficiency Particulate Air filter kit effectively collects allergens, pollutants, and microscopic particles, ensuring cleaner and fresher air for your home or business. It is compatible with Honeywell's HPA300S series air purifiers. https://www.partshnc.com/hrf-arvp300-honeywell-hepa-filter-kit-for-hpa300ss