Second, it is best to set openable windows for floor-to-ceiling windows to ensure air circulation and facilitate ventilation. Don't close all the French windows. Windows should be opened above the waist of adults, and the windows that open outward are the best.
Third, floor-to-ceiling windows should not face the entrance door or room door. It is more important to seek wealth and keep it. Doors and windows are the import and export of wealth, and poor use will lead to the accumulation of wealth.
Fourth, it is best for floor-to-ceiling windows to effectively control sunlight.