2. If the entrance mirror is at the top, so that people can look up and see the reflection on their heads and feet when they enter the house, there will be reverse dry Kun, which must be avoided.
3. If the entrance mirror is facing the door of the house, it will easily lead to distraction, hallucinations and serious illness. If the mirror happens to be in the sick place, then the gas field of the sick place will be distributed throughout the home.
4. If the glass material or technology of the porch is not suitable for blurring light and shadow, these will also cause specular reflection effect.