3PCS 6 Inch Air purifier Filter Replacement, Pre-filter, HEPA, Activated Carbon Composite Filter Suitable For Air Filter

["3-in-1 Complete Filter Set – Includes pre-filter, true HEPA filter, and activated carbon layer with silver ion technology for comprehensive air purification in one compact 6-inch replacement unit","Washable & Reusable Pre-Filter – Captures large particles like dust, pet hair, and lint; simply rinse and reuse to extend the life of your main filters and maintain optimal airflow.","High-Efficiency HEPA Filtration – Dust in the air, including pollen, smoke for cleaner indoor air.","Activated Carbon + Silver Ion Layer – Effectively neutralizes odors from pets","Easy Maintenance & Replacement Guidance – Replace the HEPA/carbon composite every 3–6 months based on usage; monitor the silver ion layer—if it changes color, it’s time for a fresh filter"]