How can I keep Cigarette Smoke out of my suite?

[ditzydavis]

I have recently moved into a Main Floor of a house and have come to realize that the woman that lives in the basement smokes like a chimney! I don't tolerate cigarette smoke very well not to mention that I do not want my house to smell like an ashtray (especially since I don't smoke).

How can I keep the smell/smoke from the basement out of my living space?

Thanks!