This unobtrusive exhaust system, COMPAIR Flow Star 150 is easily integrated into the kitchen, leaving visible only the elegant stainless steel front plate. Sophisticated air cleaning technology creates a highly efficient air flow with a help of a powerful built-in fan that moves unwanted smoke and smell outside through the external wall sleeve. The air flow generated pressure is used to open and close this vent system. The Flow Star 150 ventilation system is practically maintenance-free. Naber.