Don't you think this university's resources can be better spent?! No one needs a PHD or a laboratory to figure out that some people may be allergic to incense or candles. If they go to church, they deal with it in their own way. Sit in the back, etc. These scientists should discover something beyond common sense.
That's the way it started with smoking on airplanes.
My recollection is that the priest or altar boys start at the back and work their way to the altar with the incense.
Of course, the candle smoke is endemic.
Won't work.
And there are kids in there - infants being baptised.
Sorry, that's a non-starter.
"Study finds more studies necessary."