Kitchen is the dirtiest areas in the house. It is because kitchen has strong oil spot. It may not be important but glass in the kitchen window need to be cleaned and protected from the dust. The air circulation and lighting is an important element which can create a comfort kitchen. So the existence of kitchen window becomes important thing. Cooking is an exciting activity. We might forget kitchen window treatment when we focus in cooking. But this activity can danger our healthy because the burn oxygen by the gas stove is not substituted by the clean air circulation so the room will be felt crowded.