Vacuum pathway in a cleaning device

摘要

A cleaning apparatus is disclosed for extracting a liquid from a surface. The apparatus includes at least one extraction head that has at least one aperture that is facing the surface to be cleaned. The vacuum cleaner includes a vacuum pathway situated between the at least one extraction head and a riser that is connected to a vacuum motor. The internal surfaces of the vacuum pathway are smooth and the vacuum pathway has certain dimensions and orientations that optimize the extraction of a liquid from a surface.