4 ms·

It is even better than that. Smokers used to sit and smoke in "non-smoking" to be away from the stale smoke.

• hgomersall 4y ago
  It was like this on trains in the UK until fairly recently. The smoking carriage was generally pretty empty, but was frequented by those that needed to get their hit who then returned to the cleaner coaches.
  • cafard 4y ago
    The Long Island Railroad eliminated smoking cars something like twenty-five years ago because they cost so much more to clean.