Give me a break. Taking a whiff of the food you are about to eat is not “huffing”. It’s a pretty standard part of enjoying a meal, and nobody would expect any negative health consequences from in under ordinary circumstances.
He clasped the bag around his face and huffed it.
He did it every day, day after day, year after year.
I have toured the OSHA lab where they did the work on this issue. I first heard about this there, and the article I posted verifies that account.