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Face masks and respirators in the fight against the COVID-19 pandemic: An overview of the standards and testing methods - ScienceDirect
Face Masks and COVID-19 | NIH News in Health
The face behind the Covid-19 mask — A comprehensive review - ScienceDirect
Researchers propose that humidity from masks may lessen severity of COVID-19 | National Institutes of Health (NIH)
Last-resort strategies during mask shortages: optimal design features of cloth masks and decontamination of disposable masks during the COVID-19 pandemic | BMJ Open Respiratory Research
Difficulty Breathing in a Face Mask? Advice for Asthma and Lung Disease
MERS in South Korea Drive Sales of Face Masks | Time
Should I still wear a mask?
Mask myth debunked: Face coverings don't hurt lung function or cause CO2 buildup
Buy Aqua Lung Sport SmartSnorkel Full Face Mask | Divers Supply