Anticipating N95 mask shortage, Ontario hospital turns to full-face snorkel masks | CTV News
Why Would Hospitals Forbid Physicians and Nurses from Wearing Masks? - Scientific American Blog Network
Coronavirus Masks: Types, Protection, How & When to Use
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Masks will become optional for most hospital patients, visitors and staff | WBUR News
Wear a mask! OK, but what kind? - CalMatters
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China coronavirus: only one correct way to wear mask, says Malaysian mythbuster. Here it is | South China Morning Post
Surgical masks more effective if worn with 3D-printed frame, Concordia PhD student finds - Concordia University
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CDC tweaks its COVID rules on wearing masks in nursing homes and hospitals | Health News Florida
Which type of face mask is most effective against COVID-19? | News
Engineers design a reusable, silicone rubber face mask | MIT News | Massachusetts Institute of Technology
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Comparison of Mask Ratings, Standards, and Filtration Effectiveness – Smart Air
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A Mask Brace Can Make Your Face Mask More Effective: Study
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