Now homemade masks may not be effective, unless you want to suffocate yourself apparently.
https://www.cnn.com/world/live-news/...-20/index.html
Quote:
Studies on the effectiveness of homemade masks are limited: One unpublished study showed that thicker masks worked better, but one mask that was tested was so thick it would “cause great discomfort” and may cause the wearer to pass out.
There were no studies on how well homemade masks fit, the letter said. An ill-fitting mask may leak. And if a person sweats, the moisture could trap the virus and become a potential contamination source.
Another experiment looking at masks made from sweatshirts, t-shirts, towels, scarves and cloth masks found that they reduced some low-level protection against nanoparticles from someone breathing, but not from aerosolized infection.
|