I agree I'm being fairly blunt.  It's air not a swarm of bees. You can 'outdodge" smoke from a cigarette easily.   I grew up around a smoker and know you can get away from the smell.  If maybe there were daily smoking conventions with thousands lighting up an dproducing smoke-stack quantities of smoke, I'd see your point.  Again, not a smoker and I don't particulary like the smell of cigarettes either.