Bless you all. Healthiest time in my life was when I was unemployed and living in a pickup truck topper. I sold at a flea market and kept a separate trailer for merchandise so I could absolutely control what came into my tiny living space.
So I found a temp Xmas job and someone brought in a virus, natch.
The EPA, which keeps a watch over cleaning chemicals, does not control air fresheners. Many companies will not release the names of ingredients. If you can get those names, look them up in a MSDS/Materials Safety Data Sheet compendium.
This still does nothing for bosses who believe that it’s cheaper to fire the bearer of bad news than to call in a duct work cleaning firm.