Kitchens and associated areas are special rooms in d which meals are prepared and handed out, and where ut, tableware and equipment are washed and food is ment stored. This guideline provides information on the ventilation and air conditioning of commercial kitchens and on the design and construction of ventilation and air conditioning systems. It applies in conjunction with DIN EN 13779 and DIN 18869. This guideline does not apply to domestic kitchens or small commercial kitchens with a total connected load of less than 25 kW for appliances which give off appliances heat or steam (cooking appliances, dishwashers etc.). An exhaust system is recommended if the connected m load is less than 25 kW. The regulation of the employers' liability insurance association BGR 111 shall be observed in any case.