I have a letter from my doctor with an extensive list of Dos and Do Nots while under his treatment program. Expose to cigarette smoke is one of the Do Nots, so yes, I'd say 15 minutes of smoke exposure is not acceptable for my health
I also looked into laws around this and it is absolutely illegal for them to require employees to be exposed to cigarette smoke, and even more illegal for them to pursue disciplinary measures over my refusal to do so.
And while I'm updating the thread: I was terminated today with no notice and no explanation. They revoked my access to my schedule and other work related apps. I assume it's because I'm not willing to lay down and let them trample all over my workers rights.
I've already reported them to the labour board and am reaching out to attorneys. On top of this issue they have also altered my time card to cheat me out of hours, and told me I am obligated to show up to the work building on certain days off to work for free and "if I don't like their policies I can just go home and not come back"
I hope they enjoy being investigated and sued. I have never stepped foot in such a hostile work environment run by a bunch of angry nasty people