Is the screen window of more than ten yuan on the Internet toxic and safe?

The screen window of more than ten dollars on the Internet is toxic and unsafe. More than ten yuan of screen window products sold online are all inferior materials or added with harmful substances. These materials are potentially harmful to human health. Simplification or lack of strict control technology in the production process of low-priced screen windows leads to unstable product quality and no guarantee of safety. Cheap screen window has poor durability and stability, and it is easy to be damaged, deformed or lose its function, which has potential risks to home safety. Therefore, the screen window of more than ten yuan on the Internet is toxic and unsafe.