Combining a vented hood with an external motor will help keep noise levels in the kitchen to a minimum. In this case, the fan is not installed in the hood, as usual, but example, on an outside wall, for instance. For a significant reduction in noise levels, the ducting system should be at least 5-7 m long. The fan and cooker hood are connected by a control wire. To implement this solution, Miele offers fan units for installation on an outside wall, inside masonry or in an attic.