Replacement Filter for Air Purifier Model Core 400S Part Core 400S-RF H13 HEPA Filtration 5 Layers 3 In 1 Filter PLEASE CHECK YOUR MODEL NUMBER to ensure this is the correct filter for your Air Purifier. This filter is compatible with air purifier models Core 400S, Core 400s-RF, performing just like the original filter that came with the unit. Cost-Effective Price: Value pack saves money for your year-round air cleaning needs. Enhanced filtration performance for long-term use, it is recommended to replace filters every 6-12 months. Using an old filter decreases your air purifier's efficiency. H13 True HEPA Technology: Made with a higher grade true HEPA material featuring 360-degree Filtration, capturing 99% of particles down to 0.3 Micrometers in diameter. Enhances your indoor air quality, making it easier to breathe and sleep, while helping to avoid sniffles and sneezing. EFFICIENT ODOR REMOVAL: The Activated Carbon Filter effectively eliminates various unpleasant odors and fumes, including volatile organic compounds (VOCs), tobacco smoke, cooking odors, and pet smells, significantly reducing household odors and creating fresh, clean air for your family. Easy to install: Fits Air Purifier Model Core 400S, no need for cutting the HEPA filter. Replace your old filter without additional tools, saving time and offering convenience. Colour: White Material: Composite material Package Contents: 1 x Air Purifier Filter 1 x Brush Only the above package content, other products are not included. Note: Lighting and different display settings may cause the color of the item in the picture to differ slightly from the actual product. The allowable measurement error is +/- 1-3cm.