Fangrui Product Details The mop cloth has good softness, while cleaning the dirt, it also protects the floor from being scratched. Strong water absorption, easier to clean and reusable HEPA filter is made of high-strength environmental-friendly materials, which can block most of dust down to 0.3 micrometer. The filter can maintain the cleaning performance of the sweeper, while reducing the penetration of dust, pollen and other into the air you breathe Easy to replace and disposable, no tools required. replace filters every 6 months for optimal performance. The accessories are easy to remove dirt, dust and trash in corners and edges effectively. Especially your hairs and your pets hairs Compatible Model Compatible For 7490 Immortal Compatible For 7490 Immortal X-Treme Compatible For 7490 Immortal Home Compatible For 7490 Immortal Home X-Treme Compatible For 8290 Immortal Ultra Power Home X-Treme Compatible For 8290 Immortal Ultra Power Compatible For 8290 Immortal Ultra -Treme Not Compatible with other models of the 7490 and