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• Replacement Air Filters are designed for use with all iRobot Roomba Discovery series models (4XXX and 4XX)
• The Air Filter needs to be replaced if it becomes punctured or if you notice a decline in the cleaning performance of Roomba
The Roomba Air Filter catches a great deal of dust and fine dirt, and helps keep these particles from being released back into the environment.
Easy instructions for changing the Air Filter are available in the Owner's Manual.