CNN CNN Newsroom With Jim Acosta February 5, 2022 21:28:00
Used with the plexiglass screen, but it has to be a high quality mask. when we tried a simple cloth mask, this happened. >> three, two, one. >> most of the droplets got through. and while the screens can help protect you, the professor says too many in one room can block air flow and put people at risk. now, this type of set up simulates an office environment, a plexiglass desk with three sides. you might also find this in the classroom. the question is, if somebody coughs, will it stop the spre...
Source: archive.org