We live in a flat. Below us the neighbours chain smoke and as it is an old building, the smoke comes up into our flat despite trying to block it. We have spoken to them and they don't care. I'm so upset as I can't prevent the kids from passively smoking. It is making me feel like such a crap mum. Not really looking for advice, just sympathy I guess. I wish we could move, but unfortunately it costs so much :(