Features: 1Applicable Models: This filter set is perfectly designed to fit for J4, J4 LITE robot vacuum cleaners, which can be perfectly fit with your machine. 2Effective Cleaning: The filter efficiently removes up to 99% of dust, dirt, pet hair, and microscopic particles, providing a thorough cleaning experience. 3Durable Material: Constructed with high efficiency particulate air filter and precise craftsmanship, this filter set is both durable and long lasting. 4Washable and Reusable: The filter can be washed and reused, simply rinse it with water and let it air dry for easy cleaning, environmentally friendly to use. 5Easy Installation and Maintenance: These filters are easy to install and require no additional tools. They are designed for hassle free maintenance, ensuring your vacuum cleaner operates smoothly and efficiently. Specification: Item Type: Robot Vacuum Cleaner FilterMaterial: High Efficiency Particulate Air FilterWeight: Approx. 130.00g / 4.59ozApplication: Suitable for J4, J4 LITE Package List: 4 x Filters Note: We recommend replacing the filter every 3 to 6 months to extend the lifespan of the vacuum cleaner.