I got curious about if home made cotton masks were actually useful and found these two studies that say they aren& #39;t as effective but better than nothing

https://www.ncbi.nlm.nih.gov/pubmed/24229526 
https://www.ncbi.nlm.nih.gov/pubmed/24... href=" https://www.ncbi.nlm.nih.gov/pubmed/18612429 ">https://www.ncbi.nlm.nih.gov/pubmed/18...
DIY cotton masks absorb a lot of moisture so it might be a breeding ground. Remember to sterilize.

This thread is for N95 masks specifically but heat is probably the best sterilization method to ensure moisture droplet blocking capability https://twitter.com/FioraAeterna/status/1233850778974068736">https://twitter.com/FioraAete...
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