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Jan 10, 2022Liked by John Skylar, PhD

I bought and read A Song for a New Day in January of 2020. I don't think I've ever seen something go from speculative to current events that fast.

And while that future obviously had its bad points, I could wish we paid half as much attention to ventilation as they do.

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On re-use of KN95: I’ve seen different sources recommend 24, 48, or 72 hours between reusing a mask. Store it in a breathable container e.g. brown paper bag; have 3 or 4 masks and rotate among them daily.

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Kid's masks: https://lutema.com/collections/made-in-usa-masks/products/kids-5-layer-disposable-face-mask-with-95-particle-protection-made-in-the-usa-5-pack

The "m95c" standard appears to be one that the manufacturer made up, but these masks have been tested, including by Aaron Collins, and seem to work, if they fit the particular child's face. I am not an expert and am repeating what I read, obviously.

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