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A Robot Vacuum Cleaner That Also Mops A robot vacuum cleaner that can also mop the floor, this model from German manufacturer Karcher is an impressive first. Its innovative features, such as cliff-detection and AI mapping helped it to easily gobble up biscuit crumbs and pet hair however dust proved more difficult. The app is compatible and provides convenience, letting you set virtual walls to help it avoid furniture and stairs, or schedule cleaning at sp