So unlike before where it was the expert opinion of someone, this is based on an experiment. One that has yet to be peer-reviewed it seems, but an experiment nonetheless.
I know masks have been a flashpoint for many. My advice as a spiritual teacher, make your own informed choice, and let others make their own without getting upset that their choice is not the same as yours.
Please do with this information what you will, I am just trying to keep you informed of what I think is valuable information related to your safety.
-Douglas Johnson E-RYT 500, YACEP