What Is the Difference Between First Hand Smoke and Secondhand Smoke

While first-hand smoke refers to the smoke inhaled by a smoker and second-hand smoke to the exhaled smoke and other substances emanating from the burning cigarette that can get inhaled by others, third-hand smoke is the second-hand smoke that gets left on the surfaces of objects, ages over time and becomes …

Is 2nd hand smoke worse than 1st?

Secondhand smoke was generally believed to be more harmful than primary smoke. Mechanisms for the potency and health effects of secondhand smoke involved the smell of secondhand smoke, secondhand smoke being an infection and affecting the immune system, and personal strength being protective of secondhand smoke.

What is the difference between second-hand smoke and sidestream smoke?

Secondhand smoke (SHS) is also called environmental tobacco smoke (ETS). … Mainstream smoke: The smoke exhaled by a person who smokes. Sidestream smoke: Smoke from the lighted end of a cigarette, pipe, or cigar, or tobacco burning in a hookah.