It's NOT just water vapor. Vaping exposes your lungs to harmful chemicals and can affect your overall health. This Vaping Awareness Month, get the facts and free support to quit. Text READY HOW TO TALK TO YOUR KIDS ABOUT VAPING Propylene Glycol in E Cigarettes Is PG Dangerous to Inhale? E Cigarette Direct Conventional and multi omics assessments of subacute inhalation toxicity due to propylene glycol and vegetable glycerin aerosol produced by electronic cigarettes ScienceDirect Are Electronic Cigarettes harmful to your health?