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Robot Vacuum Cleaners Reviews A robot vacuum is a powerful tool to keep your home free of pet hair, dirt and other dust particles that can cause allergic reactions. However, they require regular maintenance to work their best. Even the most expensive models can be entangled under door thresholds, furniture or get tangled up in cords and shoelaces. To keep your robot vacuum working efficiently, think about the following suggestions: Object Detection A set of sensors to detect obstac