Droplets produced by coughing, photographed using laser techniques. The large droplets will fall to the ground within one second, whereas the tiny droplets can remain in the air for several minutes. Image: The Lancet / G. A. Somsen et al.
Droplets produced by coughing, photographed using laser techniques. The large droplets will fall to the ground within one second, whereas the tiny droplets can remain in the air for several minutes. Image: The Lancet / G. A. Somsen et al. Using laser light techniques, UvA physicists and medical researchers have found that small cough droplets, potentially containing virus particles, can float in the air in a room for many minutes, especially when the room is poorly ventilated. Good ventilation in public spaces (e.g. public transport, nursing homes) is therefore crucial to slow down the spread of the coronavirus.
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