What Are the 3 Types of Smoke from Cigarettes?

Learn about the three types of cigarette smoke—mainstream, sidestream, and thirdhand—and their health risks.

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There are three types of smokes: mainstream smoke, which is directly inhaled through a cigarette; sidestream smoke, which comes from the burning end of a cigarette; and thirdhand smoke, which lingers on surfaces like clothes and furniture even after the cigarette is extinguished. Each type carries harmful chemicals.

FAQs & Answers

  1. What is mainstream smoke? Mainstream smoke is the smoke directly inhaled by a smoker through a cigarette.
  2. How does sidestream smoke affect non-smokers? Sidestream smoke comes from the burning end of a cigarette and can expose non-smokers to harmful chemicals, increasing health risks.
  3. What is thirdhand smoke and why is it dangerous? Thirdhand smoke is the residue left on surfaces like clothes and furniture after a cigarette is extinguished; it contains harmful chemicals that can linger and affect health.