Guess what? Propylene glycol is toxic in small doses. All the things that a lot of people use on a daily basis contain tiny amounts of this stuff, and that adds up to one big dose at the end of a day.

As an example, if you google "dangers of propylene glycol," you will find hundreds upon hundreds of studies that show propylene glycol as a toxic substance, and one we should avoid. Has anyone ever thought about what anti-freeze is made of....propylene glycol. I'm also sure that you are aware that dogs will die if they drink anti-freeze. It's because of kidney failure.

Flying