I don't like the military, but I found this video quite interesting.

I DON'T KNOW IF THIS IS AN EFFECTIVE MEASURE/ITEM.

[US CDC] Recommendation Regarding the Use of Cloth Face Coverings, Especially in Areas of Significant Community-Based Transmiss

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"It is critical to emphasize that maintaining 6-feet social distancing remains important to slowing the spread of the virus.  CDC is additionally advising the use of simple cloth face coverings to slow the spread of the virus and help people who may have the virus and do not know it from transmitting it to others.  Cloth face coverings fashioned from household items or made at home from common materials at low cost can be used as an additional, voluntary public health measure."

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[US CDC] How to Make Your own Face Covering