A member asked:

Please help, how much second hand smoke is equal to smoking a cigarette?

3 doctors weighed in across 2 answers

Secondhand smoke: If a person spends more than two hours in a room where someone is smoking, the nonsmoker inhales the equivalent of four cigarettes.

Answered 9/29/2016

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Same as smoking.: The risks may be lower, but they're the same as smoking. Heart disease. Lung cancer. Emphysema. The list goes on.

Answered 10/15/2015

2.1k views

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Can second hand smoke give me the same side effects as smoking?

A doctor has provided 1 answer