Duo: is a multi-functional cleaning robot designed for home. It innovatively integrates air-purification and floor-sweeping to meet most of the household cleaning needs. The air purifier can move along with the floor sweeper, which expands the purification range and improves the working efficiency. The compact size of the sweeper robot can make it easily go underneath the furniture i.e. places that are hard to reach. The duo works together to provide an easy and overall cleaning experience.