US Patent 10092155 Surface cleaning apparatus

A surface cleaning apparatus includes a housing including an upright handle assembly and a base mounted to the handle assembly and adapted for movement across a surface to be cleaned The surface cleaning apparatus is further provided with a fluid delivery system comprising a fluid dispenser and at least one fluid delivery channel forming a portion of a fluid delivery pathway. The fluid delivery channel can be formed by a portion of a suction nozzle assembly on the base. A light provided on the base can be configured to illuminate the fluid delivery channel when cleaning fluid is being delivered.