When you open a window, you should consider the location of the window, how to look outside and how to feel indoors. First of all, we should give full consideration to it, just like the human face, which is the basic equipment of the house.
The size of the window, in addition to considering the proportion of outdoor, but also consider the proportion of indoor.
What is the scenery like? Can you see the scenery outside the window? Or whether the windows are quiet, whether there is noise pollution, air pollution and so on.
How about the lighting? Good light and bright windows are natural.
Consider screens and curtains.
Think about the windowsill.
In short, the consideration of windows, except some personal feelings, everyone's feelings, and whether it is in harmony with the whole house and the natural environment, does not need to consider Feng Shui, not from the level of feudal superstition.