Nicotine has a very non-linear impact on health. While ecigs are about 10x better in terms of the amount of 2nd hand nicotine, I wouldn't call them safe. IIRC i

Nicotine has a very non-linear impact on health. While ecigs are about 10x better in terms of the amount of 2nd hand nicotine, I wouldn't call them safe. IIRC it takes extremely low nicotine levels to cause (temporary) circulatory problems.