When someone requests books only be from a smoke free home and yours is smoke free but how do you know that you received it from a smoke free home????????   I dont place that condition when I request books so when I post them I can say my home is smoke free but I can't guarantee it came from a smoke free home.  Any advice?

If I bought it used, I usually decline.  I don't have any idea where the book came from, and that's what I put in my reply.

I have gotten a request recently that specified that if it is currently in a smoke free home, then it's ok to send.  My theory is that you don't do anyone any favors if you send them a book they're allergic to.  They can always re-word thier conditions if they mean only to exclude those books currently in a smoking home. 

Hi Lynn-

I have that requestor condition because I'm highly allergic to cigarette smoke, so I appreciate you asking. What I would suggest is to simply smell the book. Usually you know immediately if you open a package with a book in it and it smells of cigarette smoke. If it does then don't send it to someone who requests no cigarette smoke. Simple!

I hope that helps!

When in doubt, decline the request.  IMO, if people are not clear with their conditions, they risk missing out on some book requests.  I have a condition regarding smoking, but I have worded it to state that I prefer books from non-smoking homes, however if yours is a non-smoking home and your book is used, please just give it a whiff, and if it smells ok to you, it will to me too.  I haven't had a request declined yet due to my condition.  If you are a non-smoker, you are probably a pretty good judge of whether a book smells like smoke or not, so you could just gamble and send it anyway if you think it's ok.  Otherwise, you could PM the requestor and ask, and while you do, you might mention to them that they might want to reword their condition, since it's uncertain whether they are willing to accept used books of unknown origin from non-smoking  households.

most of the time that RC means current environment and not the history of it before you got the book.  If someone wants a book that has NEVER been in a smoking enviornment they should probably go buy a new book because there is no way to know the history of book.

For me it depends on how the request is worded.  I buy most of my books used.  I don't have a sensitive nose.  They all just smell like books to me.  If it's asking for me to sniff the book and check is provenance then I hit "no", unless I bought the book new.  If it just says currently from a non-smoking home then I hit "yes". 

I'm one who requests that books don't smell like smoke. I'm highly sensitive to it and wouldn't be able to read it. So, like someone else said, I'd just simply smell it. If it smells like smoke, hold onto it.