Abstract: An improvement on a humidifier includes a leakage prevention ring, and two opposite supporting plates. The leakage prevention ring has several ring-shaped portions, which define inner and outer concentric annular trenches. The concentric trenches are closely mounted onto an upper end of a vapor conduit, and a down-projecting annular protrusion of a vapor outlet disposed right above the conduit respectively. The supporting plates can pivot up and down, and are biased by torsion springs to hold a water-supplying bottle between them in an inverted vertical position, which is connected to a valve of the humidifier, so that the bottle can't tilt or shake to cause damage to the valve.

Abstract: A steam cleaner includes a housing, a head cleaning member fitted to an upper end opening of the housing, an electric heater received in the housing, a pump also received in the housing, and a water container secured to the bottom of the housing. The pump has an inlet connected to the water container, and an outlet connected to a water pipe passing through the electric heater. A nozzle is connected to the upper end of the water pipe. When the pump and the heater are activated, the pump forces the water in the container through the water pipe for allowing the water to be heated to become steam by the electric heater. The steam is sent out via both the nozzle and the head member to help kill bacteria when the head member is rubbed against an object in cleaning.