Well I for one am pleased about the smoking ban, heaven forbid allowing smokers to blow their contaminated air several rows in all directions.
Just an idea, what about a cubicle or two, standing room only of course, where a smoker could go and the air could then be expelled directly out of the airplane rather than recycle it to the disgust of other passengers? It could even be fitted with a pay lock on it, say 5 quid entrance to pay for installation, cleaning and to make up loss of revenue on the seating removed to make room for the cubicle.
Could even make the cubicle look like a coffin as a salutary reminder of the consequences of smoking
Better go now before I get to sound like a non-smoker