Subscribe RSS feed

Face Masks

Efficacy of universal masking for source control and personal protection from simulated cough and exhaled aerosols in a room

By / / Leave a Comment

Face masks reduce the expulsion of respiratory aerosols produced during coughs and exhalations (“source control”). Factors such as the directions in which people are facing (orientation) and separation distance also affect aerosol dispersion. However, it is not clear how the combined effects of masking, orientation, and distance affect the exposure of individuals to respiratory aerosols […]

Efficacy of universal masking for source control and personal protection from simulated cough and exhaled aerosols in a room Read More »

Low-cost measurement of face mask efficacy for filtering expelled droplets during speech

By / / Leave a Comment

The global spread of COVID-19 in early 2020 has significantly increased the demand for face masks around the world while stimulating research about their efficacy. Here we adapt a re- recently demonstrated optical imaging approach and highlight stark differences in the effectiveness of different masks and mask alternatives to suppress the spread of respiratory droplets

Low-cost measurement of face mask efficacy for filtering expelled droplets during speech Read More »

Face Masks Against COVID-19: An Evidence Review

By / / Leave a Comment

The science around the use of masks by the general public to impede COVID-19 transmission is advancing rapidly. Policymakers need guidance on how masks should be used by the general population to combat the COVID-19 pandemic. Here, we synthesize the relevant literature to inform multiple areas: 1) transmission characteristics of COVID-19, 2) filtering characteristics and

Face Masks Against COVID-19: An Evidence Review Read More »