THE SHORTAGE of face masks for frontline health-care workers could be offset by making your own at home instead of buying them online. Here's a simple pattern you can use to make your own PPE. The ...
In a head-to-head comparison of masks worn by people with active COVID-19, the inexpensive “duckbill” N95 came out on top, stopping 98% of COVID-19 particles in the breath of infected people from ...
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