You can smoke on deck 14 Starboard, deck 11 Aft, in your cabin, and balcony if you have one, deck 7 starboard, and the casino/players bar. All other bars, restaurants, hallways and public places it is banned.
Surely if smoking was such an issue you would have researched this before you booked and perhaps selected a line where smoking is not allowed in the cabins?
I did research it but never imagined that smoking would be allowed in all cabins and on all balconies - it says nothing about it in the brochure and I have since discovered that the vast majority of cruise ships automatically offer smoke-free cabins...I dont want to pay thousands of pounds to sleep in someone elses ashtray and do not think I am especially fussy to think that..
We have just returned from a 15 day cruise on OV2 and even though we are both none smokers we didn't notice any smell of previous occupier's smoking in our cabin. The cabins are cleaned every day and there is air conditioning which probably also filters the air as you can't open the window unless you have a balcony.