iRobot’s first roller mop-equipped robovac has a unique trick to help keep your carpets dry. Announced this week, the Roomba Max 705 Combo is an upgraded version of the robovac iRobot launched in April, offering a “first-of-its-kind” mop cover that it automatically deploys when cleaning carpets. Unlike with mopping pads, many robovacs with roller mops often can’t lift up their mops to clear carpets, nor can users — or the robovac itself — easily remove them. The Max 705 Combo’s mop can extend to go along edges and reach corners. The Roomba Max 705 Combo can also extend its mop to reach corners and the edges of walls.