Vaping The Chemistry of Vaping ChemistryViews High Levels of Fruit flavored Chemicals in E cigarette Liquids Vaping: A Dangerous Epidemic The Catalyst Avoiding Tobacco Smoke and E Cigarette Aerosol Is a Key Part of Asthma Management Asthma and Allergy Foundation of America Vaping is often marketed as a safer alternative to smoking, but many vape products contain nicotine, harmful chemicals, and heavy metals that can harm developing brains and lungs.