Second hand smoke is dangerous.
Did you know that when you are around someone who is
smoking, you are probably breathing in smoke? This is
known as ‘second hand smoking’.
When they are around someone who is smoking, the
amount of smoke a non-smoker breathes in depends on
how close they are to the smoker(s), the size of the room,
the number of smokers in the room and the number of
cigarettes smoked. Opening a window does not protect
you from smoke. Using ventilation, air conditioning,
or a fan does not eliminate second hand smoke.1