Is feng shui good in a room without windows? How to decorate?

No matter from the perspective of geomantic omen or life, it is not good for a room to have no windows. Black is airtight. It is not difficult to solve the problems of darkness and ventilation. First, the simplest way to solve the dark problem is to install lights. If the problem of lighting is considered, it depends on whether some structural changes can be made, such as removing partitions and adding a window to guide light; Secondly, ventilation is not difficult to solve. Electrical appliances such as ventilation fans or air conditioners can be installed without changing the structure. If natural ventilation is considered, we can only find a way in structure.