Risk assessment of inhaled diacetyl from electronic cigarette use among teens and adults ScienceDirect Best Diacetyl Free Vape Juice for Safe Vaping in UK Beginner's Guide to Vape Mods RED Box Vape Red Box Vape How do I figure out if my vape juice contains diacetyl or not? : r Vaping Vape Mods Mod Your Vape Customise Your Vape Tank DYK? Vaping coats lungs with potentially harmful chemicals. This can include chemicals such as: Diacetyl: This food additive, used to deepen e cigarette flavors, is known to damage small passageways in the lungs.