Photo 1 of ** OPENED AND USED, SEE PICS**PETOX FLT4825 HEPA Filter B Replacement Compatible with AC4825 AC4300 AC4800 AC4900 AC4850 Air Purifier, 4 True HEPA Filters & 8 Activated Carbon Pre-Filters, HEPA Pure Version, Yellow

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Photo 1 of ** OPENED AND USED, SEE PICS**PETOX FLT4825 HEPA Filter B Replacement Compatible with AC4825 AC4300 AC4800 AC4900 AC4850 Air Purifier, 4 True HEPA Filters & 8 Activated Carbon Pre-Filters, HEPA Pure Version, YellowPhoto 2 of ** OPENED AND USED, SEE PICS**PETOX FLT4825 HEPA Filter B Replacement Compatible with AC4825 AC4300 AC4800 AC4900 AC4850 Air Purifier, 4 True HEPA Filters & 8 Activated Carbon Pre-Filters, HEPA Pure Version, YellowPhoto 3 of ** OPENED AND USED, SEE PICS**PETOX FLT4825 HEPA Filter B Replacement Compatible with AC4825 AC4300 AC4800 AC4900 AC4850 Air Purifier, 4 True HEPA Filters & 8 Activated Carbon Pre-Filters, HEPA Pure Version, Yellow