Thats all well and good , but as as you and I both know , you can generally smoke outside all buildings anyway , there are at least 7 smoking areas outside departures at Suvarnabhumi.....The problem is after you've spent 30- 60 minutes getting through immigration to depart ( I'm one of the lucky ones , who have fast track ) , then what happens . Typical Thai logic , act before thinking . Nowhere does it say if these areas are inside ( outside ) after passport control . Even LHR have now got cages smokers can visit once past immigration ......My Thai wife has tried several times to get an answer , to no avail .....Looks like I will be off to an empty gate , to use the restrooms there