How to Double Mask Correctly - The New York Times
Testing whether uncertified N95 masks are effective | MIT News | Massachusetts Institute of Technology
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Read my lips: Transparent COVID face masks to ease the communication barrier in Hong Kong | Euronews
Study Indicates That Humidity in Breath Makes Cotton Masks More Effective at Slowing the Spread of COVID-19 | NIST
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Maximizing Fit for Cloth and Medical Procedure Masks to Improve Performance and Reduce SARS-CoV-2 Transmission and Exposure, 2021 | MMWR
A User's Guide to Face Masks - The New York Times
Microstructure analysis and image-based modelling of face masks for COVID-19 virus protection | Communications Materials
Making your own mask? Researchers say some fabrics can filter nearly as well as an N95 - The Boston Globe
EPFL's first see-through surgical masks go into production
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Bacterial and fungal isolation from face masks under the COVID-19 pandemic | Scientific Reports
See-Through Face Masks In High Demand As Pandemic Surges : Shots - Health News : NPR
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Masks Under the Microscope | NIST
When and how to use masks
Coronavirus masks: How to clean, sanitize and reuse your mask
COVID-19 and masks: Tips for families | UNICEF
Engineers design a reusable, silicone rubber face mask | MIT News | Massachusetts Institute of Technology
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Aerosol Filtration Testing of Fabrics for Development of Reusable Face Masks - Aerosol and Air Quality Research
