Vaping really is THAT bad @LungAssociation says vaping isn't just inhaling harmless water vapor. Liquid in vapes often holds harmful drugs & chemicals, like nicotine, propylene glycol (found in antifreeze), carcinogens, acrolein ( Vaping Possible Negative Effects on Lungs: State of the Art From Lung Capacity Alteration to Cancer Cureus PSA: vaping at high voltages produces high levels of a carcinogen The Verge Health effects of electronic cigarettes Wikipedia