3 ms·

https://www.ncbi.nlm.nih.gov/labs/pmc/articles/PMC7253999/#__ffn_sectitle https://www.ncbi.nlm.nih.gov/labs/pmc/articles/PMC7253999/#_... It mentions surgical

by sp332 5y ago

https://www.ncbi.nlm.nih.gov/labs/pmc/articles/PMC7253999/#__ffn_sectitle https://www.ncbi.nlm.nih.gov/labs/pmc/articles/PMC7253999/#_... It mentions surgical masks and N95 masks.