As far as the "non-" you might look at From https://en.wikipedia.org/wiki/Polyvinylidene_fluoride#Safety_and_regulations https://en.wikipedia.org/wiki/Polyviny

As far as the "non-" you might look at From https://en.wikipedia.org/wiki/Polyvinylidene_fluoride#Safety_and_regulations https://en.wikipedia.org/wiki/Polyvinylidene_fluoride#Safety... "PVDF is widely considered safe and ubiquitous used for water treatment,[24] the food industry, and biocompatible devices like hernia meshes or internal devices.">