propylene glycol in e cigarettes April 7, 2014: What are electronic and why are they so popular? | Tennessee Poison Center What is Propylene Glycol (PG)?
What is Propylene Glycol (PG)? Vaping HC DrugFree Propylene Glycol in E Cigarettes Is PG Dangerous to Inhale? E Cigarette Direct Do you know what you're vaping? Propylene glycol (PG) and vegetable glycerin (VG) are the main liquids in vapes. When heated, these chemicals turn toxic and aren't safe to breathe.
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