OP, do you have the source for this? I've been searching and cannot find it.
In fact, the NIH has endless publications saying masks work, masks don't cause problems while exercising, and most recently...humidity from masks may lessen severity of COVID-19.
OP, do you have the source for this? I've been searching and cannot find it.
In fact, the NIH has endless publications saying masks work, masks don't cause problems while exercising, and most recently...humidity from masks may lessen severity of COVID-19.
https://www.niddk.nih.gov/about-niddk/meet-director/directors-update/2021-spring/research-updates#section5
I am able to find other, older articles indicating mask failures, but none currently via NIH. Thanks.
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7680614/?fbclid=IwAR2EJ__tfhXAJrgb3GAy4cQIcmZrC2vIjzv7FGXsKtemUQlMwXZ7rea9D7Q