1.Most e-cigarettes contain nicotine,nicotine is highly addictive.
2.e-cigarette aerosol can contain substances that harm the body.This includes cancer-causing chemicals and tiny particles that reach deep into lungs. However, e-cigarette aerosol generally contains fewer harmful chemicals than smoke from burned tobacco products.
3.Defective e-cigarette batteries have caused fires and explosions, some of which have resulted in serious injuries. Most explosions happened when the e-cigarette batteries were being charged.