This is not true. Second-hand smoke (the smoke exhaled by someone smoking a cigarette, cigar, pipe of hookah) has more than 70 toxic chemicals known to cause cancer. It can cause lung cancer in people who do not smoke themselves and is especially dangerous for children, babies, and pregnant women.

Additionally, third hand smoke is the residual nicotine and other harmful chemicals left by tobacco smoke which clings to hair, skin, clothes, furniture and other surfaces. Contact with surfaces containing third hand smoke can lead to tobacco related health risks for children and non-smoking adults.