My neighbor also installed central air conditioning, with low decibel continuous noise. How to solve it? It's very hot. What if negotiation fails upstairs and downstairs?

The outdoor unit should be installed as far away from the window as possible, and it is best to install a sound insulation cover. If all outdoor units have been installed according to the standard, but there is still noise, you need to modify the glass of the window. If possible, both parties will negotiate and each party will contribute to install a double-layer sound insulation glass on the window. You can also install some silencing cotton on the inner wall of the bedroom, but it may change the decoration of the bedroom. Got it.

One more thing, if people who sleep in the bedroom near the air conditioner have neurasthenia, it is still recommended to move to a bedroom far from the air conditioner. To tell the truth, a little noise of neurasthenia will affect their sleep, which is more difficult to solve, and they can't take sleeping pills for a long time, which is bad for their health and easy to cause dependence.