Properly fitted multilayer masks block 84 per cent of particles expelled by a person wearing it, while two people donning these types of masks can reduce transmission by close to 96 per cent, accordin
Study reveals multilayer masks most effective at preventing aerosol generation
India
Updated: Saturday, March 6, 2021, 11:33 [IST]
Bengaluru, Mar 06: Multilayer masks are most effective at preventing aerosol generation, says a new study conducted by a team led by researchers at Bengaluru-based Indian Institute of Science (IISc). The study was carried out in collaboration with scientists in UC San Diego and University of Toronto Engineering.
According to IISc, when a person coughs, large droplets (>200 microns) hit the inner surface of a mask at a high speed, penetrate the mask fabric and break up or atomise into smaller droplets, which have a greater chance of aerosolisation and thereby carrying viruses like SARS-CoV-2 with them.