I googled it and found these:
Cigarette Smoke & Pets - Associated Content Second-hand Smoke Harms Pets
I don't know if it is an option but if you can you should really consider quitting. I am not trying to be mean or anything but it does sound very harmful to your pet as well as your own body. Maybe if that is not an option you should follow the guidelines and not smoke inside, as that would be the best you can do for your future dog.
Vanessa