A cleaner that includes a nozzle assembly; a cleaner body that is coupled to the nozzle assembly; and a water cleaning device that is coupled to the nozzle assembly, the water cleaning device including: a water tank that is configured to hold a cloth and that includes: a water storage area that is configured to store water to provide to the cloth, and an air hole through which air comes in from an outside of the water tank, and a control device that is configured to open or close the air hole and that includes: a movable member that is located outside of the water storage area of the water tank and that is configured to move between a first position and a second position to open or close the air hole is disclosed.