After reading PTJD's response I'm editing to say her asthma really acts up. What ever you want to call it, she is very sensitive to smoke.
I do know someone that has to ask hotels and ships (cruises) to do a special kind of room cleaning because if someone has been smoking in that room the residue will set off her allergies and she can't breath. Even though she can't smell it, her lungs can tell when someone has smoked in a room. Apparently there is a special kind of cleaning they can do for people like her, but it's not fun.
BTW I am able to sit right next to her and
vape away. No coughing at all, but the minute a smoker enters the room, she will start coughing.