PG is what is used in enviromentally friendly/non-toxic pink antifreeze. The exact same thing (including the pink coloring) is sprayed onto planes to deice them. No protective gear required other than slickers (since you know, you are spraying water in freezing conditions).
Also added to the water system of buildings that will be unoccupied during the winter since to reverse it you just run all the taps until the tank is empty, turn the water back on, and run them until the water is clear.
PG is also used in adult beverages (1~5% by volume), salid dressing (~1%), and lots of other foods.
*EDIT*
Don't try to vape the pink stuff by the way. It is industrial grade instead of pharm or food grade. There are massive 55g drums of it near me right now.