iRobot Roomba 700 series replacement accessory kit includes filters, side brushes, flexible beater brush, bristle brush, etc.
Changing filter every 2 – 3 months is highly recommended. Just remove dustbin and slide filter out to clean or change as filters maintain optimal cleaning performance.
iRobot Roomba 770 replacing brushes and filters
iRobot Roomba 700 Series Replacement Accessory Kit
Filter also reduces infiltration of dust, pollen and other allergens. It’s best to replace your brushes every 1 to 2 months which will bring your Roomba back to top cleaning performance.