Which floor is the king of the building and which floor is the best? Why good

From the perspective of light, the floor is naturally not suitable for being too low, and the sunlight on the lower floor will be blocked by the surrounding buildings. But the floor is too high and the angle is wrong, which affects the sunshine. Generally, the 8- 10 layer is a dust layer, and the dust will be suspended at this height. Floors above 10 will not be disturbed by dust. Relatively speaking, 1 1-25 is better.