I knew it was about medical masks… one can easily extrapolate that other physical barriers over one’s face holes are better than nothing with limiting the spread of droplets.
That is amazing. Now science requires me to “extrapolate”? To assume? Last I looked last year there were 100s of thousands of COVID studies already cataloged at MIT. And I need to “extrapolate”?
Because all “masks” are not created equal. Did Fauci specify “medical masks” or did he say “cloth face coverings”?
You are putting your faith in people unable to admit they have ever been wrong. With a blind faith in “data”. Who are unable to look up from a microscope and see what is happening. That group may have a bigger problem with confirmation bias than any other.
It’s really hard for me to understand why people downplay severity of the virus, the efficacy of masks and especially the vaccines, but champion questionable therapies live ivermectin and hydroxychloroquine. Why?
Preventing the spread of the coronavirus - Harvard Health.
Researchers at Duke University created a simple setup that allowed them to count the number of droplet particles released when people spoke the phrase “Stay healthy, people” five times in a row. First, the study participants spoke without a mask, and then they repeated the same words, each time wearing one of 14 different types of face masks and coverings.
As expected, medical grade N95 masks performed best, meaning that the fewest number of droplets got through. They were followed by surgical masks. Several masks made of polypropylene, a cotton/propylene blend, and 2-layer cotton masks sewn in different styles also performed well.
I have found numerous studies along those lines - largely controlled studies over brief time frames typically with brand new masks. That’s why I question their relevance to large sociological settings involving many uncontrolled variables. That’s what prompted me to consider these questions:
How long do the virus particles stay on or in a mask?
How effective are masks that are repeatedly used?
What percent of virus particles are trapped in a mask via casual conversation and breathing vs coughing or sneezing?