Welcome to FNGZ，I wish you a happy shopping！ 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, replacement is easy. 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. It is recommended 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 For more good-looking and affordable items, please search or click the brand：FNGZFNGZ Filter Screen Clearance 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 HourProduct description：【Matiral】Carbon Cotton 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 HourFeatures: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 saferQuick and Easy to Replace: When it's time for a change, replacement is easy. 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. It is recommended to replace air filters every 6 monthsLasts 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 powerProduct Description:1*Air Purifier Filter 【Product Size】8.07 x 8.07 x 6.5 inches 【Service】If you have any questions about our products, please feel free to contact us and I wish you a happy shopping!For more good-looking and affordable items, please search or click the brand: FNGZ