NEEBOOL&reg;Tangle-Free Debris Extractor Set & Side Brushes & Hepa Filters replacement For iRobot Roomba 800 series 870 880 900 series 980 Clean brushes keep your home robot operating at peak performance. Side brushes are easy to remove and replace as part of routine maintenance. Replacement filters for iRobot Roomba 800 Series and Roomba Professional Series Robots. Filters maintain Roomba's cleaning performance while reducing infiltration of dust, pollen and other allergens into the air you breathe. For best results, filters should be replaced every 2 - 3 months.