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Essay: Why does the president of the Philippines Rodrigo Duterte require Philippine citizens to wear a mask and a face shield and the wimpy Anthony Fauci not stress wearing a mask and a face shield? (view source)
Revision as of 03:25, May 23, 2021
, 03:25, May 23, 2021→Covid-19: Double masking combined with a face shield vs. merely using one mask
== Covid-19: Double masking combined with a face shield vs. merely using one mask ==
== Covid-19: Double masking combined with a face shield vs. merely using one mask ==
Below is data/studies regarding the effectiveness of masks, double masking and wearing a mask as well as a face shield.
:“The data suggest that both medical and non-medical facemasks are ineffective of viral and infectious disease such as SARS-CoV-2 and COVID -19...
I realize that science is based on replicating studies, but I will share a Stanford University anti-masking study even though I disagree with its findings:
{{Cquote|The data suggest that both medical and non-medical facemasks are ineffective of viral and infectious disease such as SARS-CoV-2 and COVID -19...
According to the current knowledge, the virus SARS-CoV-2 has a diameter of 60 nm to 140 nm [nanometers (billionth of a meter)] [16], [17], while medical and non-medical facemasks’ thread diameter ranges from 55 µm to 440 µm [micrometers (one millionth of a meter), which is more than 1000 times larger. Due to the difference in sizes between SARS-CoV-2 diameter and facemasks thread diameter (the virus is 1000 times smaller), SARS-CoV-2 can easily pass through any facemask."<ref>[https://greatamericanpolitics.com/2021/04/liberals-furious-over-stanford-study-that-found-masks-are-useless-against-covid/ Liberals Furious Over Stanford Study that Found Masks are Useless Against COVID]</ref>}}
Healthline.com: "Researchers found that when a cough was simulated, the double mask blocked 85.4 percent of the aerosol particles. This is compared to 51.4 percent and 56.1 percent for the cloth and surgical mask, respectively."[https://www.healthline.com/health/double-masking#how-to]
The science website Nature.com:
{{Cquote|What does this imply for the ability of masks to impede COVID-19 transmission? The virus itself is only about 0.1 µm in diameter. But because viruses don’t leave the body on their own, a mask doesn’t need to block particles that small to be effective. More relevant are the pathogen-transporting droplets and aerosols, which range from about 0.2 µm to hundreds of micrometres across. (An average human hair has a diameter of about 80 µm.) The majority are 1–10 µm in diameter and can linger in the air a long time, says Jose-Luis Jimenez, an environmental chemist at the University of Colorado Boulder. “That is where the action is.”
In a review of observational studies, an international research team estimates that surgical and comparable cloth masks are 67% effective in protecting the wearer."<ref>[https://www.nature.com/articles/d41586-020-02801-8]</ref>}}
Healthline.com: "Researchers found that when a cough was simulated, the double mask blocked 85.4 percent of the aerosol particles. This is compared to 51.4 percent and 56.1 percent for the cloth and surgical mask, respectively."<ref>[https://www.healthline.com/health/double-masking#how-to Should You Be Double Masking?]</ref>
Double masking and wearing a face shield is the way to go. '''Please see:''' [https://jamanetwork.com/journals/jama/fullarticle/2769693 SARS-CoV-2 Infection Among Community Health Workers in India Before and After Use of Face Shields]
Double masking and wearing a face shield is the way to go. '''Please see:''' [https://jamanetwork.com/journals/jama/fullarticle/2769693 SARS-CoV-2 Infection Among Community Health Workers in India Before and After Use of Face Shields]