What is the way to clean the screen window? Asking for information

Invisible screen window is covered with dust. Most of the time, we remove the screen window and wash it with water. Tell you a good way to clean the screen window without dismantling it: wet the waste newspaper with a rag, and then stick the wet newspaper on the back of the screen window. After five minutes, take down the newspaper on the screen window, and you will find that the wet newspaper is covered with dust stains on the screen window. This method saves time and effort in cleaning the screen window. In contrast, the screen window can't be washed clean with the faucet at all, and the effect is very surprising by watering the flowers directly with the pressurized watering can.