SIESEAN AP400 Official Genuine Replacement Filter Set, 4-Pack with 2 H13 True HEPA Filters and 2 Activated Carbon Filters, Designed by Original Manufacturer, Easy Installation

["Official Genuine Replacement Filters for SIESEAN AP400: Designed and manufactured by the original maker specifically for the AP400 air purifier, ensuring a perfect fit and intended airflow performance. Non-genuine filter cartridges affect performance and installation compatibility","4-Filter Set Designed for Everyday Indoor Air Issues: Includes 4 replacement filters–2 H13 True HEPA filters and 2 Activated carbon filters. For optimal air cleaning performance, replacing the filters every 3–4 months is recommended, depending on indoor air quality and daily usage. H13 True HEPA filter size: 14.29 × 8.46 × 1.18 inches (L × W × H); Activated carbon filter size: 14.29 × 8.46 × 0.39 inches (L × W × H)","H13 True HEPA Filtration for Fine Particles: Built with H13 True HEPA filtration to capture up to 99.97% of airborne particles as small as 0.1 microns, including dust, pollen, pet dander, smoke, and fine particulate matter. Effectively addresses airborne particles in bedrooms, living rooms, kitchens and homes with pets","Activated Carbon Filtration for Odor and Reduction：The activated carbon filters help absorb and reduce common household odors and gases, such as those from cooking, pets, smoke, VOCS and everyday indoor activities. Suitable for new homes, freshly painted areas, and shared indoor spaces where odors are more likely to occur","Easy Installation with Proper Setup Guidance: Designed for quick, tool-free installation. Before use, remove all protective plastic packaging and align the filter correctly with the bottom locking slots to ensure proper fit, sealing, and airflow performance"]