Illustration of Mask Material Testing indicating breathability (air flowing through a fabric), wate-resistance (water droplets beading up on a fabric) and particle filtration (particles being blocked by a fabric)

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3 Easy DIY Mask Tests

In an ideal world, the safety and efficacy of all of the fabrics and materials used in handmade masks for COVID-19 would be tested using the same standards and facilities used by researchers and large manufacturers. Unfortunately, very few people have access to these resources. In this post we provide instructions for three easy DIY […]

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