COMPATIBILITY: Specifically designed to be fully compatible with MA-15 air purifier as a direct replacement filter THREE-STAGE FILTRATION: Features pre-filter, H13 Grade Main Filter, and activated carbon filter for comprehensive air purification PREMIUM FILTER GRADE: H13 Grade Main Filter captures 99.9% of ultrafine and harmful airborne particles with superior efficiency for cleaner and fresher indoor air HIGH-EFFICIENCY: Activated Carbon Filter traps larger particles in the air like dust, hairs, pet fur, lint, and absorbs household odors from pets, cooking, smoking, wildfires, and harmful VOC s PACKAGE CONTENTS: Includes Four (4) complete set of replacement filter (pre-filter, main filter, and activated carbon) Upgrade your air purifier's performance with this Flintar H13 Grade replacement filter set. This comprehensive 3-stage filtration system includes a pre-filter to capture larger particles, an H13 grade main filter for harmful fine particle removal, and an activated carbon filter layer that helps reduce common household odors and VOC's. The filter pack is specifically designed to be compatible with MA-15 air purifier model, ensuring a perfect fit and optimal air cleaning efficiency. Regular filter replacement helps maintain your air purifier's effectiveness in removing airborne particles from your indoor environment. This replacement filter set makes maintenance simple and straightforward, allowing you to continue enjoying cleaner air in your space.