Joanne FreemanAug 8, 2023

So...with the new semester on the horizon and COVID lurking, a recommendation for masks.

After trying MANY kinds, the 3M Aura 9205 and 9010 are the best. They don't fog my glasses while teaching. The straps go under my hair and hold the mask tight.

So there you go.

#COVID #COVID19 #masks #school

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@jbf1755 Someone posted a toot about carbon dioxide meters the other day. Measuring carbon dioxide as a marker for inadequate air circulation indoors. Levels of 550 to 650 think about masking up. Get a meter and scare the heck out of your colleagues.
Aug 9, 2023 at 1:43amWeb