I live on the second floor, an old-fashioned building, and live in downtown Tangshan. There were many mosquitoes since the summer of the year before last, even when the weather turned warmer in winter.

It has nothing to do with entering the water. If there are too many mosquitoes, seal them up and pay attention to screens and doors. Don't open the window after dark. As soon as the text is blacked out, it will stick to the glass, and then you can take the opportunity to destroy it. The last line of defense is to use mosquito nets when sleeping. If you don't like it, you can only use nontoxic mosquito-repellent incense.