Oh dear Skipy, please read my first paragraph again, then again, and again and again and agin until you get it! Smoke travels. It can't be contained. Every time a door's opened, air containing smoke moves in and out. You can't have a 'sealed room' - if it's sealed, how do you get in and out to go to the bar or the bog? Every time you do that, the smoke (which would get pretty thick and unpleasant, even for hardened addicts, in a 'sealed room') moves out with you.

Skipy, it's not about preventing you from smoking - smoke to your heart's content and do it with my best wishes for your health and happiness. Just don't do it where it affects others who find it revolting. GO to the pub, ENJOY a few pints in the bar, SMOKE outside and do it with good grace - everyone (including the landlord and me) will LOVE you for it. :-)

S:0)