Most of the bars/pubs I peform/hang out in have fairly good air filtration systems, but when I look around I see 50% or more of the patrons are smokers - an unfortunate statistic that owners cannot easily ignore. From what I've seen I don't have very much trouble avoiding smoke blowing as me directly but it's the over-all effect of the smoke - like your clothes reeking. I personally can imagine hearing a favorable response from the audience when the barman or barlady says, "And now performing live here's Tom Cook who requests that you refrain from smoking while he's singing." May be I should FIRST request a wall of chicken wire. . .

pax yall