WATCH: 85% of cough droplets blocked by surgical mask, experiment shows
Researchers at Lund University in Sweden have recorded coughs resolved at high temporal resolution - 8,000 images per second - and high detection sensitivity, using laser light scattering. This enabled them to count the number of droplets as well as measure their speed with high accuracy. The preliminary results show that only 15% of droplets pass through a low-cost surgical mask. In addition, tho
https://www.lunduniversity.lu.se/article/watch-85-cough-droplets-blocked-surgical-mask-experiment-shows - 2025-11-29
