smoke exhaled from a smoker's lungs is called mainstream smoke
id this true or false
true.
Google would have given you a faster answer.
https://www.google.com/#q=mainstream+smoke+&*
thank u ms. sue and thank u too bobpursley
You're welcome, Heaven.
oh Ms. Sue do u know a website where i can look to find out how to help someone quit smoking
http://www.google.com/#q=quit+smoking&*
Good luck! :-)