Roborock Qrevo Curv Vacuum & Mop Those who have hard floors know the drill of vacuuming and then mopping, hoping that the prior step got all the hair and corners clean. Roborock's Qrevo Curv does both, with a 100% hair removal rate and 0% hair tangling rate. Its DuoDivide Main Brush has two parallel rollers with spiral blades that send hair to a central inlet where its powerful 18,500 Pa HyperForc