The DENX DX2577 is a 16-inch electric anion mist spray cooling fan (often mistranslated or conflated with "onion steam fan") featuring a 75W pure copper motor, 3-speed settings, and a 4 to 5-liter water tank for humidification. If you meant a small novelty gadget intended to blow away vapors while cutting onions, you are likely looking for the Fanion Cordless Kitchen Prep Fan.