The Up-and-Down kitchen ventilators exhaust smoke and vapor while cooking. The height can be adjusted, and it features self-cleaning by high temperature, voice control and auto-control of the fan.Designed by: Xueliang Chen, Weijian He, Tuanhui Yin of Vatti and designaffairs Shanghai ChinaContact: hexf@vatti.com.cn; www.vatti.com.cn