@mdcjb, I am not a lung patient, however I just don't like the smell of strong scents. I am known to avoid or rush past a candle store ot cosmetic counter in a store or shopping mall, or the detergent aisle at the grocery store. I have also become more aware of how much my own perfume might be offensive to others, so I go with a very light application when I use it.

When I get my appointment schedule prior to my Mayo visits, there is a notification posted with each procedure/visit to avoid using scented lotions, perfumes, after shave, etc. My own husband uses a product with a mild scent, so I suggested for him to avoid using it, just in case he sat next to someone who might be sensitive, and he said he never even thought about that because he does not have much of a sense of smell and never even notices scents. So, I wonder how many other people just are not aware. - I hope that we will see more signs like I once saw in an interstate rest stop that explained why they did not use scented soaps in their dispensers or fragrant air fresheners in their facilities!

I do hope that the radiology technician was not at Mayo. Mayo does have a policy for its staff as posted in a previous post by Colleenyoung on December 29, 2017. - Indeed there is a policy for Mayo Clinic staff regarding scents. Our dress and decorum work policy, given to all employees when they start at Mayo Clinic, states:
“It is unacceptable for employees to smell of cigarette smoke or other strong perfumes or odors while at work. Employees who arrive in the work area with the smell of cigarette smoke or other strong smells on their clothing will be required to change before entering the work area.”