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This is very useful, I have made a 3 layer Qualitative Filter based face mask with middle layer soaked in brine solution for possible virus deactivation[1].

With more governments officially recommending DIY face masks for public, so that proper N95 masks can be left to the health care workers; I would love to get my mask scientifically tested.

[1]https://abishekmuthian.com/diy-qualitative-filter-face-mask/

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The CDC suggests it might be possible to re-use masks after storing them in a paper bag for a while https://www.cdc.gov/niosh/topics/hcwcontrols/recommendedguid...

I also wonder how such re-use of a mask combined with more durable N99 masks that are ordinarily rated at hundreds of hours for the filter (compared to 8 hours for your average N95 mask) could be used as a more permanent mask for households if only used occasionally when going to get groceries for example.

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