How to solve the problem that the windowsill is full of water in winter?

You can open the window for ventilation. If the indoor and outdoor temperatures are almost the same, there will be no water in the window. If you feel too cold to open the window, you can spray anti-fog agent directly on the window, which is very useful and can make water droplets not produce for a certain period of time; Turn on the dehumidifier regularly indoors, but it is not recommended to turn on the dehumidifier for too long, which will lead to indoor dryness; You can put a few towels with strong water absorption system under the window to prevent the windowsill from being damp and moldy.