This is a functional improvement design of an indoor humidifier, adding the function of ultraviolet mosquito killer. The combination of the two makes the humidifier no longer monotonous. The rocket design makes the whole look more concise and generous. The humidifier is distributed above and the mosquito killer is distributed below. The split design is conducive to isolating water and electricity, ensuring safety and easy cleaning. Mosquito repellent toilet water can also be dripped in the water storage tank, which is distributed with the water mist, and the room is full of fragrance.