Physics experiment shows potential value of triple-layer masking
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March 5, 2021 A new study looks at how droplets expelled by a cough or sneeze can break up into smaller pieces when they collide with mask material. The research underscores the importance of multi-layer masks to prevent the spread of COVID-19. (Photo: CDC, via Unsplash)
An experimental study carried out by an international team of engineers and physicists has added more evidence for the value of triple-layer masking to prevent the spread of COVID-19 and similar diseases.
“Any form of mask is better than no mask,” says Professor
“But what we also show is that if they have enough momentum, large liquid droplets can penetrate single or even double-layer masks. When they do, they break up into smaller droplets that are more persistent in the air.”