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It depends on your needs. If it's for safety, or for keeping warm. Or to protect against rain. Of course it can be closed.
The lantern lantern on the fifteenth day of the first lunar month is a Chinese tradition, which can be turned off after the evening, but it is generally overnight.
If the balcony doors and windows are closed, they can be opened, if there is no air conditioning, they must be opened in two, and if they are opened, they can be diffused for ventilation, so that the air in the house will be cooler if they are circulated.
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Don't think too much about it, it's caused by the temperature difference.