【Upgraded】MSA3 Air Purifier Replacement Filter, Compatible with MSA3 & MSA3S, 3-in-1 H13 True HEPA Filter with Odaller Pure Technology, 4 Pack

3-in-1 Filtration System: Combines a pre-filter, H13 grade true HEPA filter, and activated carbon filter for comprehensive air purification. High Efficiency: Effectively removes 99.97% of particles as small as 0.3 microns, including PM2.5, pet odors, bad smells, smoke, and cooking odors. Odaller Pure Technology: Utilizes advanced activated carbon technology to absorb harmful VOCs and unpleasant odors. Easy Replacement: Designed to fit MSA3 and MSA3S air purifiers, with 4 filters included in the package. Long-Lasting Performance: Recommended to replace every 6 months for optimal air purification results.