XIUH Air Purifier Replacement Filter True HEPA and Activated Filters Compatible with Compact Portable Air Purifiers Lasts for 180 Days Or 6 Months Equivalent to 4320 Hour Features: High-Efficiency Filtration System: a filter replacement with a 3-stage filtration system that includes a fine preliminary filter, HEPA and activated filter that effectively eliminates even the microscopic particles for a cleaner and fresher air making your family breathe safer Quick and Easy to Replace: When it's time for a change, replacementiseasy. Simply rotate the filter cover off, the old filter, then put the new filter. Press and hold the ‘Filter' button for 3 seconds and you're ready to enjoy clean air. Itisrecommended to replace air filters every 6 months Lasts up to 180 Days or 6 Months (4320 Hours): The room air filter replacement lasts up to 4320 hours or equivalent to 180 days or 6 months depending on the use and environment. in addition, it also has a surface area that's 70% larger than flat-filters providing for a lot more air cleaning power Product Description: 1*Air Purifier Filter Material:Carbon Cotton Suitable for daily kitchen use Lightweight and durable, it can meet your daily kitchen needs and make your kitchen work more convenient. Size:8.06 inch X 8.06 inch X 6.48 inch Dear customer, if you have any questions, please feel free to contact us and we will reply within 48 hours.