• 150㎡ mopping area: Mopping area data is abtained from the Dreame Technology Laboratory. The Mi Robot Vacuum-Mop 2, at full water tank, starts running at the medium spray setting, and mops in a rectangular open space of 4×5m, completing more than 8 complete cycles. • 2700Pa powerful suction fan blower: Air pressure test data is obtained from Dreame Technology Laboratory using air performance test equipment to verify that the powerful suction fan blower at the inlet of the Mi Robot Vacuum-Mop 2 can reach up to 2700Pa. • 110-minute battery life: Data from Dreame Technology Laboratory. The fully-powered Mi Robot Vacuum-Mop 2 is set to standard mode and run on a 4×5m rectangular open floor to discharge the battery. The operating time when the battery runs out is recorded, and the test is repeated three times with the same environment and method. The operating times after each single charge all exceeded 110 minutes. • Upgrade pressurized mopping: Compared with Mi Robot Vacuum-Mop, Mi Robot Vacuum-Mop 2 adds two pressurization buttons, During cleaning, the spring in the button will maintain a stable downward pressure on the entire water tank due to the squeezing force, thereby achieving the effect of increasing the pressure of the water tank on the ground. • 250mL water tank: 1. Use an electronic scale (accuracy 0.01g) to weigh the empty water tank as M1; 2. Fill the water tank with tap water, and weigh it on the electronic scale as M2; 3. Water tank capacity M=M2-M1, repeat the steps 1, 2 to test three times, record the average value of the water tank capacity. The measurement result is: 250±5%mL.