Just a curiosity question. We have a research group raising concerns that face coverings could inhibit one's ability to smell, a sense they believe they really need to have in a laboratory setting. I've seen publications disputing concerns around carbon dioxide entrapment and heard plenty of practical comments about being able to smell cologne through the coverings, but I haven't seen anything published on this topic. It sounds like a weak argument to me, but I don't want to simply discount this concern without a good faith effort to find out if there's any real evidence that this is a valid concern. Any thoughts/comments that you would care to share?

Thanks,
Kim

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