The Bosch DHD3014UC/02 is a downdraft ventilation system that efficiently removes cooking odors, steam, and grease from your kitchen. With five different blower speed settings, you can customize the ventilation power to your cooking needs. The intake can be raised or lowered with the push of a button, and the filters are dishwasher safe for easy cleaning. For best results, turn on the blower before you start cooking, and use a higher heat setting if necessary.