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. VAPING IS NOT RISK FREE Immediate and short term health effects for youth who vape can be significant. , The aerosol from e cigarettes pod vapes is not safe to breathe in and contains chemicals also FDA bans Juul e cigarette products Vuse Go Reload Pen Prefilled Pod Kit VAPE.CO.UK