Compatible with select models (AC4825, AC4825E, AC4300, AC4800, AC4900, AC4850, AP2200CA) and the for Black+ BXAP148, Please note that this is not an original manufacturer product, but it is designed specifically for compatibility with the listed models Enjoy fresh, all year round with the FLT4825 Replacement Filter. This H13 true HEPA filter, combined with a high-efficiency activated carbon filter, effectively filters airborne particles as small as 0.3 microns, It also decomposes unpleasant household odors and wildfire gases, keeping your living environment fresh and comfortable. Designed to ease uncomfortable symptoms caused by problematic air, this filter is a must-have for anyone looking to improve their indoor air quality Package includes 4 x H13 True HEPA Filter and 6 x Activated Carbon Filter. Maintaining optimal air quality in your home or office is crucial for and well-being. That's why it's essential to replace the filters in your regularly. We recommend replacing the HEPA filter every 6-8 months and the pre-filter every 2-3 months for optimal performance Simply re-move the old filter and insert the the unit. Once installed, turn on the machine and the UV button for 5 seconds until the flashing red light disappears, indicating that the filter has been successfully reset Color: As Shown Material: HEPA Package Contents: 4 x True HEPA Filters 6 x Activated Carbon Pre-filters 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.