FITS PERFECTLY: FLT5000 air purifier filter C compatible with AC5250PT air purifier models AC5000E AC5350W AC5000 AC5300B .IAP--125 and BXAP250. They work as the which come with the air cleaner. PREMIUM QUALITY:Filter size C FLT5000 use high grade H13 true HEPA. EASY TO INSTALL: No tools required. To keep your air purifier functioning properly, recommend replace the True HEPA filter every 6 months and the activated charcoal pre-filter every 3 months for optimal performance. COST-EFFECTIVE PACKAGE: FLT5250PT filter-c-pet combo contains Extra 8 X Activated Carbon Pre-Filters and 2 X H13 True HEPA Filters. By choosing our products, you can get all the benefits of air filters and save much cost for your all the year round air cleaning need. Material: Non-woven fabric + sponge colour: As shown Package Contents: 2 x filter elements 8 x sponges Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.