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What is the efficacy of standard face masks compared to respirator masks in preventing COVID-type respiratory illnesses in primary care staff? - The Centre for Evidence-Based Medicine
Conversion of self-contained breathing apparatus mask to open source powered air-purifying particulate respirator for fire fighter COVID-19 response - ScienceDirect
AHN Turns to New Masks on Frontlines of COVID-19 Battle | Pittsburgh Magazine
Frontline medical staff design innovative PPE respirator that could provide a breakthrough in the fight against COVID-19 - Manchester University NHS Foundation Trust
What is the prime time for face masks to mitigate transmission? - Dentistry
A Clunky, Reusable Mask May Be the Answer to N95 Waste - The New York Times
Thinking Outside the Box: One Doctor's Approach to Help Protect Her Team - Transforming Outcomes
Meet The Italian Engineers 3D-Printing Respirator Parts For Free To Help Keep Coronavirus Patients Alive
High 'face fit test' pass rate on smaller face shapes with FFP3 respirator | RCNi