Keep your air purifier performing at its best with this 3-in-1 replacement H13 True HEPA filter, compatible with LEVOIT Core 600S / Core 600S-P Smart WiFi Air Purifier and replacement for 600S-RF / LRF-C601-WUS. The nylon pre-filter captures larger particles such as dust, lint, fibers, hair and pet fur to help extend filter life, the H13 HEPA layer captures 99.97% of airborne particles down to 0.3 microns, and the activated carbon layer helps reduce odors and fumes from smoke, cooking and pets. Ideal for homes with pets, kitchens, and everyday allergy and dust control, this filter installs quickly with no tools; replace every 6-12 months depending on usage and local air quality for consistent airflow and filtration. Disclaimer: This is not an Original Equipment Manufacturer (OEM) product, HQRP branded product is a replacement. All brand names and logos are registered trademarks of their respective owners. Any use of the brand names or model designations for this product are made solely for purposes of demonstrating compatibility.