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Robot Vacuum Reviews While robot vacuums can reduce the need for regular, full-blown sweeping, they can't substitute for traditional plug-in models. To keep them in good shape take the dust bins out after every cleaning session. Clean the sensors and camera periodically. Replace filters and side brushes as needed. It comes with a large bin and an auto-empty feature that is quiet. Its obstacle-avoiding capabilities are tied to cords and socks and also misses dirt on baseboards. iRobot Roomb