30 Inch Downdraft Ventilation with Multiple Blower OptionsWith attractive styles ranging from traditional to contemporary, Bosch ventilation products are a perfect complement to your Bosch kitchen. Their hoods operate at whisper quiet volume while quickly clearing the air after a fragrant meal. Powerful ventilation is now easy on all your senses. The DHD3014UC features a 14 high rise with a 3-speed mechanical slide-switch control.What's special about German engineering is special about Bosch.Everyone knows Germans craft brilliant and efficient machines. The question is, Why At Bosch, it's because they relish a challenge. They prize the ability to overcome technological obstacles in order to produce precise, powerful appliances that perform better, are more intuitive and use fewer resources, while delivering world-class performance. Moreover, they aren't afraid of the exacting work it takes to produce elegant, stylish products with the most advanced technology available. Combine that with rigorous technical education, strict German efficiency guidelines and over two hundred days of rain driving them inside for long periods, well, maybe it's not that difficult to understand what drives Germans to engineer the world's best machines.