Ripening fruit gives off ethylene gas and my guess is that the more ripe the fruit gets, the more ethylene it emits.
I smoked cigarettes for 30 years. I quit 10.5 years ago. If it is yet another reason on your list of 'why to quit', it is well worth it. I can't tell you how much better I feel since I quit. The hikes I do every weekend would be impossible if I still smoked. How it affects orchids, I cannot say. My guess is it could be negative.
Do you have a fan for air movement?