- Compatible Model: The FLT4825 Replacement Filter is perfectly compatible with G-Guardian Air Purifiers AC4825, AC4300, AC4800, AC4900, AC4850. Please confirm your air purifier model matches these filter parts before purchasing. - Filtration performance: H13 True HEPA Filter B captures 99.97% of airborne particles and particles as small as 0.3 microns. The AC5000E activated carbon prefilter absorbs smoke, cooking fumes and noxious odors from volatile organic compounds. - Build and materials: The True HEPA filters for G-Guardian Air Purifiers AC4825 AC4300 AC4800 AC4900 AC4850 use a composite wet framework filter material. The replacement filters for AC4850 are closely arranged, using high-quality foam adhesive for bonding, making the AC4850 filter not easily deformed or broken to ensure the purification effect. It also uses advanced low energy consumption and low-density structure technology to support maximum filtration. - Easy installation and maintenance: AC4850 HEPA filter element for HEPA air purifiers is easy to replace, with no tools required. Simply remove and replace from your air purifier when needed. It is recommended to replace the True HEPA Filter every 6-9 months to maintain and improve the purifier’s performance. - Use scenarios: - Home with pets or dust: place in living rooms or bedrooms to reduce particle levels and improve comfort. - Kitchen or smoking areas: reduce smoke, cooking fumes and odors for a fresher indoor environment. - Small offices or dorm rooms: help maintain cleaner air and lower exposure to VOCs and fine particles.