Vaping isn't just vapor. It's an aerosol filled with nicotine and chemicals that go deep into your lungs and straight into your bloodstream. Many vapes contain: Highly addictive nicotine Vaping: can your life go up in smoke? UK Addiction Treatment Centres Curious about the difference between healthy lungs and a vaper's lungs? See how vaping impacts your lungs, and why it's best to quit early. Do electronic cigarettes create thirdhand chemical residue? Thirdhand Smoke Resource Center