Compare With Core 400S Filter Replacement compatible with Core 400S and 400S-RF air purifiers. Designed to fit your air purifier. CAPTURE LARGE PARTICLES: Ultra-fine nylon pre-filter captures large particles such as dust, lint, fibers, hair, and pet fur, helping to extend the life of the filter. UPGRADED HEPA SMART TECHNOLOGY: H13 True HEPA filter uses advanced materials for better purification performance than traditional HEPA filters. Captures 99.97% of particles as small as 0.3 microns, including household dust, pet dander, mold spores, and plant pollen. ELIMINATE HOUSEHOLD ODORS: Activated carbon filter with enhanced deodorizing formula improves odor removal by 60%, effectively reducing pet odors and household odors without risk of secondary pollution. Easy to install and replace; no tools required. Replace filters every 6 months for optimal performance. In environments with higher pollution levels, more frequent replacement may be needed. Color: Yellow Material: Composite material Size: 236 x 252 mm Package Contents: 1 x Air Purifier Filter Note: The package includes only the item listed. Other products are not included. Note: Lighting and display differences may cause slight color variations between the image and the actual item. Measurement error allowed is +/- 1-3 cm.