Compatibility and fit Specifically designed for i7+, E5, and E6 series robot vacuums. It fits the device's original card slot, ensuring a tight seal and filtration efficiency. Filtration performance efficiency filter materials capture fine particles such as dust and powder, prevent secondary dust, and help discharge cleaner air. Durability Strong structure that is not easily deformed or broken. It is durable and can withstand multiple cleaning or replacement cycles to maintain long term filtration capacity. Easy installation Simple to install: open the dust box cover, remove the old filter, and it with a one. Quick and laborsaving. Why you need it Provides a reliable, compatible filtration upgrade that maintains vacuum performance over time, helps keep indoor air cleaner, and protects the vacuum's filtration system from wear. Use scenarios Pet households with shedding or dander, where consistent filtration reduces indoor dust during cleaning. Allergyconscious homes that require better containment of fine particles and cleaner airflow. Regular cleaning in environments with higher dust levels, such as homes with kids or DIY spaces like garages or workshops. Material and compatibility emphasis efficiency filter materials designed for i7+, E5, and E6 series vacuums, ensuring compatibility with the device's original card slot and maintaining filtration performance.