Water accumulation prevention device and humidifier

The embodiment of the utility model discloses a ponding prevention device and a humidifier, and relates to the field of humidifiers, the ponding prevention device and the humidifier comprise a box body, a water baffle and a mist making device, the mist making device is arranged in the box body, the box body comprises a mist cavity, and a mist discharging opening of the mist making device is connected with the mist cavity; the water baffle is arranged in the mist cavity, the water baffle comprises a narrow rib, a wide rib and two side rib positioning columns, the narrow rib and the wide rib are fixed through the two side ribs, and the narrow rib and the wide rib are arranged in a staggered mode. According to the water accumulation prevention device and the humidifier, the water baffle structure is additionally arranged in the mist cavity so as to block large water drops in mist, and the problem that water accumulates on a panel of the mist outlet cavity of the humidifier is solved. 本实用新型实施例公开了一种防积水装置及加湿器，涉及加湿器