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ceejayoz
on Aug 25, 2024
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Study: Air purifier use at daycare centres cut kid...
Yup. We have several of these running. Helps with allergies and when one of us got COVID the rest did not.
https://en.wikipedia.org/wiki/Corsi%E2%80%93Rosenthal_Box
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Search:
https://en.wikipedia.org/wiki/Corsi%E2%80%93Rosenthal_Box