Russellcrew,
Thought I'd throw in my comment. My sister had cf and my granny smoked. As a kid I remember no smoking signs up all over my house. Even my other grandparents, who lived near and we spent a lot of time with, had no smoking signs. This was back in the 80's when people still thought it was okay to light up in someone else's house. I can't remember anyone ever smoking inside. Maybe you should try that and if she must smoke, set up a "smoking area" outside, far away from the kids.
Thought I'd throw in my comment. My sister had cf and my granny smoked. As a kid I remember no smoking signs up all over my house. Even my other grandparents, who lived near and we spent a lot of time with, had no smoking signs. This was back in the 80's when people still thought it was okay to light up in someone else's house. I can't remember anyone ever smoking inside. Maybe you should try that and if she must smoke, set up a "smoking area" outside, far away from the kids.