Vacuum cleaner filter accessories: deeply purify the exhaust air, and there is no secondary dust after vacuuming. Filter: The filter screen supports rinsing with clean water and can be air dried to restore its filtering performance. It does not require frequent replacement of disposable filter elements and is more cost-effective for long-term use. Washable foam filter: the hole diameter, buckle and size are completely the same, which can be disassembled by hand without cutting. Circular filter vacuum cleaner: reinforced skeleton support, machine with strong gear for long-term operation. Washable rear filter: compatible with multiple brands and specifications, compatible with multiple mainstream handheld, sweeping, and push rod vacuum cleaners, with a wide audience and fast inventory turnover. Compatible for Ecovacs ，Compatible for Deebot ，N9+