These high-efficiency replacement HEPA filters for iRobot Roomba are compatible with models s9(9550) s9+ s9 Plus(9550) vacuum cleaner robot.
The Filters are Made of high-strength and environmentally Friendly protection material for working well with your robot vacuum.
S9 Filters are Made of high-strength and environmentally Friendly protection material for working well with your robot vacuum. Package List:12 packs repalce filter parts for roomba s9 series robot vacuum cleaner.
To keep your home clean, it is suggested to change the filters regularly every 2-4 months, depending on your usage
