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How to Find the Best Budget Robot Vacuum A bargain-priced robot vacuum is a great deal. But beware that it may cost more than you expect in terms of maintenance: removing fur from brushes, clogged inlets and emptying small dust bins could quickly turn your dream of automating cleaning a chore. For many the most affordable robot is the iRobot J7 Combo. It provides the exact hands-off experience for only a fraction of the cost. Suction Power Some models in this range are able to handle basic vacuuming. Ot