After I checked a lot of information, I can tell you responsibly that the PVC cling film is safe to use under normal. As long as it is purchased from regular channels and meets national standards, the PVC plastic wrap is harmless.
However, in the process of use, it must be avoided to use with oils and alcoholic foods at the same time.It is also necessary to avoid high temperature heating.
So when you use plastic wrap, be careful not to touch the food inside or wait for the food to cool before covering it with plastic wrap and refrigerating it.