Smoking bans in enclosed public places have been affective for some years now. However, enforcement leaves much to be desired.
Look at the number of bars in political or social clubs around the island. The PN club in Ta' Xbiex is one of these places where smoking is rampant. I've approached a member of the sectional committee about this blatant abuse but to no avail. This is a shame, especially when these clubs should lead by example.