Compatibility and fit - Specifically compatible with LEVOIT Core 300 and Core 300S VortexAir Air Purifier. This is not an OEM Levoit part. The listing uses the Levoit brand name and model designation solely to show compatibility. Compared to part number Core 300-RF. Filtration performance - 3-stage filtration design: 1) Fine Nylon Preliminary Filter, 2) H13 Grade True HEPA Filter, 3) Tightly packed Activated Carbon Filter. - Effectively reduces cooking odors, smoke, pet hair, volatile organic compounds VOCs and other odors while capturing dust for fresher air. Replacement life and efficiency - Uses premium H13-grade filter paper that captures 99.97% of dust and debris. - Thicker activated carbon layer extends replacement interval up to 6 months, helping maintain optimal purifier performance. What’s included - Package includes 2 x Core 300-RF Replacement Filters for Levoit. - Each replacement filter set includes all components required for standard installation. Use scenarios - Kitchen use: Install to reduce cooking smells and smoke, maintaining a cleaner, more comfortable cooking environment. - Pet households: Help control pet hair, dander and odors in living rooms and bedrooms. - Urban or office spaces: Mitigate VOCs from cleaners and environmental odors in small apartments or work areas. Key benefits at a glance - Compatible non-OEM replacement designed for Core 300 series purifiers - Three-layer filtration for comprehensive odor and particle control - H13 grade filtration with 99.97% dust removal efficiency - Longer filter life (up to 6 months) with a thicker activated carbon layer - Easy installation with a ready-to-use two-filter pack Notes - This product is a compatible replacement, not an official Levoit part. Brand name usage is solely for compatibility reference.