Wind chimes. Wind chimes are often used in geomantic omen to block or dissolve evil spirits, and the audio generated by them can drive the indoor magnetic field. In the geomantic omen of Kong Xuan School, it is often regarded as a sharp weapon to dissolve Huang Wu's evil spirits. The so-called "evil spirits in Huang Wu" are mainly diseases and plagues. Hanging a wind chime in this evil place can release such evil spirits, and if the house is washed away by the eaves of the opposite house, it can also be used to block evil spirits.
Mirror. Since ancient times, there has been a description of "the essence of golden water, which is bright inside and dark outside". Taoism has a unique understanding and record of this optical phenomenon for a long time, and Feng Shui even thinks that the mirror can restrain the suffocation. When other people's roofs, corners, temples, flagpoles and other sharp weapons rush to their doorsteps, feng shui masters will mostly suggest hanging a white tiger or gossip on the lintel of their homes to eliminate this kind of suffocation.