In 2020, with adult ICUs at risk of being overwhelmed, we wore masks and accepted restrictions. Now pediatric intensive care is at risk. Will leaders follow the evidence and tell us to mask up?
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Despite the halt to the federal mask mandate for mass transit, people may still choose to protect themselves. For those who do, the type of mask and how well it fits matter.
The CDC’s updated mask guidelines say that cloth masks offer the least protection from COVID-19. Differences in the materials masks are made from and the ways they fit are the reason.
Wildfire smoke is both inevitable and largely unpredictable. We need to change our activities and behaviours to limit exposure to wildfire smoke and protect health.
When not properly fitted, high-filtration masks offer only a little bit more protection than cloth or surgical ones.
How well your mask works depends on how well it fits. Wearing two snug masks made of different materials offers 95% protection from exposure to aerosols that could contain the coronavirus.
Top contributors
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Assistant Professor of Mechanical Engineering, Binghamton University, State University of New York
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Assistant Research Professor of Mechanical Engineering, Colorado State University
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Professor of Medicine, Epidemiologist, Physician, McMaster University
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Professor, Great Lakes Institute for Environmental Research and Director of the School of the Environment, University of Windsor
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Associate Professor (Partner), School of Population and Public Health, University of British Columbia
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PhD Candidate, Department of Engineering, University of Cambridge
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Professor of Medicine, Division of HIV, Infectious Diseases and Global Medicine, University of California, San Francisco
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Professor of Molecular, Cellular and Developmental Biology, University of Colorado Boulder
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Professor of Wildland Fire, University of Alberta
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Postdoctoral Fellow in Virology and Immunology, University of Colorado Boulder
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Postdoctoral Fellow in Virology, University of Colorado Boulder
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Associate Professor, Chemical Engineering, McMaster University