Avoiding Tobacco Smoke and E Cigarette Aerosol Is a Key Part of Asthma Management Asthma and Allergy Foundation of America About E Cigarettes (Vapes) Smoking and Tobacco Use CDC 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. Thousands of chemicals in ecig liquid and aerosol Stanton Glantz blog