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The Science is Conclusive: Masks and Respirators do NOT Prevent Transmission of Viruses
SOTT Signs Of The Times ^ | April 20, 2020 | Dr. Denis G Rancourt, PhD

Posted on 06/26/2020 8:50:20 PM PDT by Grandpa Drudge

(excerpt copied from this article)

Conclusion regarding masks that do not work

No RCT study with verified outcome shows a benefit for HCW or community members in households to wearing a mask or respirator. There is no such study. There are no exceptions. Likewise, no study exists that shows a benefit from a broad policy to wear masks in public (more on this below).

Furthermore, if there were any benefit to wearing a mask, because of the blocking power against droplets and aerosol particles, then there should be more benefit from wearing a respirator (N95) compared to a surgical mask, yet several large meta-analyses, and all the RCT, prove that there is no such relative benefit. Masks and respirators do not work.

Precautionary Principle turned on its head with masks

In light of the medical research, therefore, it is difficult to understand why public-health authorities are not consistently adamant about this established scientific result, since the distributed psychological, economic and environmental harm from a broad recommendation to wear masks is significant, not to mention the unknown potential harm from concentration and distribution of pathogens on and from used masks.

Physics and Biology of Viral Respiratory Disease, and why masks do not work

In this case, public authorities would be turning the precautionary principle on its head.

(Excerpt) Read more at sott.net ...


TOPICS: Business/Economy; Conspiracy; Science; Society
KEYWORDS: april2020; coronavirus; government; masks; oldnews; tyranny
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To: EnglishOnly
How can a person be forced by any business or government entity to wear a mask (which affects the respiratory system) without having a physical exam by a licensed doctor who approves such an action?

How is wearing a mask effective and very much worth the effort for the following?

A mask is not useful to a person with severe asthma and the uncontrontrolable anxiety that follows or is precipitated by the mask.

A person with COPD or any pulmonary disorder where oxygen levels are already impaired.

A person with cardiac issues such as atrial fibrillation or worse where oxygen levels are compromised.

A person with immune suppression issues whether from prior illness or treatment because of the concentration of bacteria and virus inside the mask.

A blanket statement that a mask is effective to these people takes on an entirely different meaning in this conversation.

101 posted on 06/26/2020 11:48:48 PM PDT by A44MAGNUT (Masks are just a form of psychological manipulation.)
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To: jonrick46
Your referenced scientific study describes what the masks are and how well they work, and measures their effectiveness at filtering particles. Particle sizes tested were >5 um and <5 um. Note that virus aerosol particles are <2.5 um, (and most are about 1 um) too small for these masks to filter out.

From your referenced scientific study: The N95 mask (best one available) is 85% effective for <5 um particles when perfectly fitted (no gap) and only 34% effective (with gap). The cheaper surgical mask is 76% effective when perfectly fitted (no gap) and 50% effective (with gap).

Because virus aerosol particles are smaller than 5 um (as small as 1 um) it is obvious why these masks will NOT prevent aerosol infection by Covid-19.

That's probably why the scientific studies reviewed by Dr. Denis G Rancourt, PhD all discovered that neither surgical masks or N95 masks were effective in Preventing transmission of viruses.

102 posted on 06/26/2020 11:49:59 PM PDT by Grandpa Drudge (Just an old man, desperate to preserve our great country for my grandchildren.)
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To: mrsmith
You're welcome. The whole thing about comparing the wearing of masks while performing surgeries to wearing masks while grocery shopping smacks of the same comparison people make about performing surgeries and cutting hair when it comes to licensing.

It's that kind of logic that led me to stop not drinking.

103 posted on 06/26/2020 11:51:10 PM PDT by Texas Eagle
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To: Grandpa Drudge

L8r


104 posted on 06/26/2020 11:55:20 PM PDT by Chgogal (ALL lives matter. If you disagree with me, YOU are the racist.)
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To: Texas Eagle

True.
Still, what else are these people to do?

They’re trying to protect those they love. Using what they can do.


105 posted on 06/26/2020 11:56:42 PM PDT by mrsmith (Dumb sluts (M / F) : Lifeblood of the Media, Backbone of the Democrat/RINO Party!)
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To: Mom MD
paper masks cannot be washed. moth ones frequently are not - i e seen some beauties in the grocery store

I guess there are people that never wash their socks also. I'm failing to see your point.

106 posted on 06/26/2020 11:57:39 PM PDT by gunsequalfreedom
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To: norcal joe

I thought about mask design after my initial reply, and thought about the seal problem of masks around their edges. I spent a lot of hours in my youth under water with a mask. If it had a bad seal, it made the dive miserable. The mask used as an air filter needs a good seal around the edges. Many of the masks I have seen are poorly designed. Try finding one with a flex fit.


107 posted on 06/27/2020 12:01:15 AM PDT by jonrick46 (Cultural Marxism is the cult of the Left waiting for the Mothership.)
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To: datura

Like most “public health” requirements, its not for you. Its for the other folks when you go out with an active case of Covid and spit, sneeze and cough your germs into the air.

But, persons stupid enough to go out and roam around whilst sick should wear a mask.

For my part, I am not going out if I get sick. Hence, no mask.

Disposable gloves, however, protect one from the disease left on doorknobs, gas pump handles, etc. by sick persons.

Hence, lots of gloves.


108 posted on 06/27/2020 12:03:18 AM PDT by anton
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To: Fai Mao
Surgeons wear them because they are cutting you open.

Before the Wuhan Kung Fu Flu, did your GP wear a mask while listening to your heart just inches away from your face? Why not?

109 posted on 06/27/2020 12:03:59 AM PDT by Chgogal (ALL lives matter. If you disagree with me, YOU are the racist.)
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To: mrsmith
Wear masks if you want. I'm fine with that. Just don't make it mandatory.

Mrs. Eagle and I wanted to go out to dinner tonight for our anniversary but the restaurant wouldn't even let us in without masks. We ended placing a to-go order and waited in our car for half an hour.

Dinner just wasn't the same but the after dinner festivities was fun.

TMI?

110 posted on 06/27/2020 12:04:20 AM PDT by Texas Eagle
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To: kingu
Surgeons wear them because they are cutting you open.

Before the Wuhan Kung Fu Flu, did your GP wear a mask while listening to your heart just inches away from your face? Why not?

111 posted on 06/27/2020 12:06:24 AM PDT by Chgogal (ALL lives matter. If you disagree with me, YOU are the racist.)
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To: Texas Eagle

Sorry to hear that.
Masks are mandatory in my rural area... but no one wears them, Would be crazy. No cases here!
But in the nearby cities... OK.


112 posted on 06/27/2020 12:08:48 AM PDT by mrsmith (Dumb sluts (M / F) : Lifeblood of the Media, Backbone of the Democrat/RINO Party!)
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To: SmokingJoe
Well it didn’t help that Governor GramdMa and Pa Killer Cuomo forced COVID positive patients into nursing homes. Sheesh, what a pathetic buffoon MSM idolizes!
113 posted on 06/27/2020 12:11:49 AM PDT by Chgogal (ALL lives matter. If you disagree with me, YOU are the racist.)
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To: mrsmith

No need to be sorry. They’re mandatory here in our rural area of Commiefornia as well. That restaurant is the first place that wouldn’t let us in.


114 posted on 06/27/2020 12:15:14 AM PDT by Texas Eagle
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To: wjcsux
Viruses are some of the smallest particles on earth, they cannot be viewed without an electron microscope. I have serious doubts about cloth face masks being able to stop them.

Every time I see this argument made on FR, I cringe, and remind myself that its not just Liberals who have faulty thinking.

115 posted on 06/27/2020 12:18:12 AM PDT by Paradox (Don't call them mainstream, there is nothing mainstream about the MSM.)
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To: Texas Eagle

California!
Well, you’re lucky to ne allowed any freedom.

Here in Va it’s bad, but no one cares...


116 posted on 06/27/2020 12:30:06 AM PDT by mrsmith (Dumb sluts (M / F) : Lifeblood of the Media, Backbone of the Democrat/RINO Party!)
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To: datura

I wonder if studies have found the virus viable in 0.125 micron vapors? And if they were transported in them, how long before the vapors evaporated leading the virus to self-destruct?


117 posted on 06/27/2020 12:34:53 AM PDT by jonrick46 (Cultural Marxism is the cult of the Left waiting for the Mothership.)
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To: oincobx
The mask does not "stop" a CO2 molecule at all. But the mask does accumulate air that has been exhaled from the previous breath within the mask, as well as moisture in the used air exhaled from your lungs.

Most of the air exhaled escapes the mask, but the air that remains in the mask before the next breath has lowered oxygen content and increased CO2 content.

The next inhale pulls fresh air into the mask and mixes it with this excess CO2 from the previous exhale. You lungs now fill with air with a reduced oxygen content and increased CO2 content.

Each breath you take repeats this increase in CO2 and reduction of oxygen that actually gets into your lungs. The longer you wear the mask, the worse this imbalance becomes.

This one is easy to check for yourselves.

Get yourself a cheap Pulse Oxymeter from your local pharmacy. ($15-$30+)

Put it on your finger and check your blood oxygen level.

Now put on your favorite mask, and just breath for a while.

Note your %SpO2 level after 5 minutes, 10 minutes, 15 minutes, 30 minutes.

I did this test on myself. My normal %SpO2 is 96% and my resting heart rate is about 62 bpm.

After 10 minutes walking slowly around my house with the procedure mask on my %SpO2 was 88% and my pulse was 85bpm.

I took the mask off, breathed deeply, and watched the %SpO2 rise to 94% within 20 seconds.

Finally, keep in mind that the excess CO2 in your lungs is probably more serious than the shortage of oxygen.

118 posted on 06/27/2020 12:57:22 AM PDT by Grandpa Drudge (Just an old man, desperate to preserve our great country for my grandchildren.)
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To: Fai Mao

Surgeons do not wear masks to prevent virus transmission. No Dr who was suffering from a virus would be operating on any patient.


119 posted on 06/27/2020 1:29:23 AM PDT by billyboy15
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To: Pontiac

later


120 posted on 06/27/2020 1:29:58 AM PDT by Pontiac (The welfare state must fail because it is contrary to human nature and diminishes the human spirit)
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