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Lazarus Long Profile picture
@LazarusLong13
Jan 5, 2022 • 10 tweets • 5 min read • Read on X
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A quick thread on why elastomeric respirators are better than N95's.

In short? Like N95/N99 disposables are better than surgical/cloth masks?

Primarily, fit. Not that fit 👇👇.

How it fits to your face.

For a number of different reasons that may surprise you.
First off, getting the respirator to actually fit to your face.

Not all facial geometries are the same.

The Fit Test Panels used to evaluate fit, I submit, do not have enough women or Asians.

Archived the pdf here:
web.archive.org/web/2022010510…

Study here:
tandfonline.com/doi/abs/10.108…
So, no surprise that with N95 disposables that 👇👇

High - level:
web.archive.org/web/2021082422…

Direct Study Link:
web.archive.org/web/2021020313…
web.archive.org/web/2021082422… Image
Do elastomerics fit easier? Yes - because of the elastomeric material (another way of saying 'rubber-like', but usually made of medical grade silicone.

So when comparing the two, we find a huge difference:

With 60 subjects from the ASA, 98% of elastomerics passed fit testing Image
versus 57% of disposables.

And the single failed fit test for the elasto's? She switched from a medium to a small and passed.

web.archive.org/web/2021020313… Image
In this next study:
jamanetwork.com/journals/jama/…

87% of participants had experience with elastomerics or disposables.

Only 1.3% had experience with elastos.

So, they were largely experienced at wearing N95's.
Yet, after watching just a 9 minute video, 92% were able to successfully fit the elastos's vs 88.5% in the N95's that they were experienced at.

Let's move on.

Speaking of movement, elastomerics keep their fit much better during movement.

Do you move during your job? Cook?
Clean? Do things as manually involved as CPR?

Then you will want an elasto.

In jamanetwork.com/journals/jaman…

N95's performance during CPR was poor. (Filtering Face piece Respirator 👇).

But elastomeric half-mask respirators' (EHMRs) performance was high.

This study confirmed Image
this next study, that CPR causes N95's to lose fit.

Their conclusion is stark and very real.

sciencedirect.com/science/articl… Image
Let's end on a light note.

Elastomeric respirators?

They let you keep fit and having fun!

With clean lungs!

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More from @LazarusLong13

Lazarus Long Profile picture
Nov 25
It doesn't get much more macho or conservative than the Marines. Nice of them to demonstrate even cotton masks reduce disease transmission in November 2024.

They require masks in Phase 1, because they have new recruits gathered together.



/+ mcrdsd.marines.mil/Graduation/Gra…All personnel must wear a mask while indoors at the Branch Medical Clinic and the Branch Dental Clinic. All Recruits must wear masks during Phase 1 of Recruit Training
Here's a video of them marching in September 2024.

/+

As you can tell from below, masking is important for ALL military personnel, NOT JUST RECRUITS, when COVID cases go to HIGH.

This makes sense - we want our military healthy and ready to defend us.

/+ On Aug. 11, the Center for Disease Control (CDC) COVID-19 Community Level for San Diego decreased to 'MEDIUM'. As of Aug. 11, all vaccinated personnel on Camp Pendleton are no longer required to wear a mask in indoor facilities.
Read 5 tweets
Lazarus Long Profile picture
Nov 24
"Dental cavities are an infectious, transmissible disease."

Whoa - that caught my eye. Diving in, a bacteria is involved:
Mutans Streptococci (MS).

MS & C albicans often team up - and that REALLY caught my eye.

C. albicans is airborne.


🧵 pmc.ncbi.nlm.nih.gov/articles/PMC66…S mutans eventually penetrates the enamel.
Before going on - the impact is HUGE. 👇

cdc.gov/nccdphp/priori…

And, #DYK that dental cavities is the most common CHRONIC DISEASE for kids? 👇 👇

medicine.iu.edu/blogs/pediatri…

Who has been ranting about chronic disease, @realLandsEnd @avierkant ?

open.spotify.com/episode/3J9hUb… Annual costs for dental care in the United States is $136 billion.4A On average, over 34 million school hours are lost each year because of unplanned (emergency) dental care.5 Almost $46 billionB is lost in productivity in the United States each year because of untreated oral disease.6 In 2017, there were 2.1 million emergency room visits for dental emergencies. Medicaid pays for about 69% of these visits for children and about 40% for adults.7
The most common chronic disease is cavities.
Who has promised to get chronic disease reduced measurably within two years by the order of TFG?

RFK. He is going to do so by putting infectious disease research on hold for 8 hours.

And removing fluoride. RFK reporting Trump wanted him to end chronic disease within two years.
Why Kennedy Sees an 'Epidemic' of Chronic Disease Among Children Trends in child health are in fact worrisome, and scientists welcome a renewed focus on foods and environmental toxins. But vaccines and fluoride are not the cause.
Read 14 tweets
Lazarus Long Profile picture
Nov 21
Thank you very much, Dr. Stone for laying out this 20 hour meeting so very clearly and concisely!

The HICPAC voted to deny HCWs N95s, deny ALL the protection of universal source control, and have HCW illness time to be so short as to be GUARANTEED to bring more LongCovid.

/1
We can see their lies by just looking at just a few seconds of one doctor's testimony.

To wit:
Doctors don't need N95s because the room has a PPE note on it.

But, after asking a few questions, they go get better PPE.

Here it is
Erica Shenoy, MD, PhD, Chief of Infection Control at Mass General Brigham, and a prominent committee voice who has published against masking in healthcare settings, argued that wearing an N95 respirator for initial patient contact was excessive. She told the committee that her practice is to go into a patient's room (without a respirator), ask a few questions, and then determine the level of protection needed. I understand that since I sometimes did the same—but that was long ago, and when I suspected my exposure would be minimal during that brief period.
To me, this is just a massive self-own by Harvard's Dr. Shenoy. She is too intelligent to be stupid, so this must be deliberate obtuseness.

Let's ignore her condescending tone (she was addressing a fellow HCW who knows exactly what the process is), and look at the facts.
Read 11 tweets
Lazarus Long Profile picture
Nov 20
Zombie Deers. Chronic Wasting Disease. Misfolded PRIONS in the brain - like Creutzfeldt-Jakob disease in humans.

✅ In 35 states.
✅ Incredibly stable in the environment.
✅ Highly contagious.

They are not sure how it's transmitted.

It's airborne. Can Rudolph infect Santa?
/1
Normally, I do long threads, but busy, today.

So, here is the source for the basics on CWD:

web.archive.org/web/2024111813…

Here's the study showing prions in saliva, which means it will be throughout the LRT and URT.

pmc.ncbi.nlm.nih.gov/articles/PMC11…

/2
Here's an initial study showing cervidized (cervid like deer) mice showing aerosol inoculation.

microbiologyresearch.org/content/journa…

Here's a follow-up showing aerosol inoculation of White Tailed Deer.

journals.asm.org/doi/full/10.11…

/3 Image
Read 8 tweets
Lazarus Long Profile picture
Nov 18
Fascinating educational article about vaccines and the immune system.

And this was an interesting bit -
Bacterial and viral infections predispose to other infections.

Get the flu? You are at greater risk for pneumococcal pneumonia.
/1 Bacterial and viral infections, on the other hand, often predispose children and adults to severe, invasive infections with other pathogens. For example, patients with pneumococcal pneumonia are more likely to have had a recent influenza infection than matched controls.62 Similarly, varicella infection increases susceptibility to group A-hemolytic streptococcal infections such as necrotizing fasciitis, toxic shock syndrome, and bacteremia.63
Those 👇 post influenza infection effects look familiar.

Where have I seen those types of symptoms before?

COV_D. Which we are getting every year, unlike the flu which is every 5-6 years.

Anywho.....

wellesu.com/10.1086/313772The theoretical bases for susceptibility to bacterial pneumonia following influenza infection are plentiful and include decreases in the function of polymorphonuclear leukocytes, macrophages, lymphocytes, and monocytes; increases in the adherence of bacteria to the respiratory epithelium; and decreased mucociliary clearance [14–19]. In studies of pneumococcal pneumonia in mice and squirrel monkeys, greater severity of disease and mortality resulted from infections due to pneumococcus and influenza virus together than from infections of either organism alone [20–21]. These animal studies sup...
Varicella (chickenpox)? Leads to Group A-hemolytic Streptococcal infection. Known affectionately as GAS, and exhibiting as
necrotizing fascitis.

researchgate.net/publication/12…VZV infection itself may cause a predisposing immune aberration or may allow invasion via another less apparent portal, such as lesions on the oral mucosa or the respiratory tract. In favor of an immune aberration is the fact that NF, the most severe manifestation of soft tissue infection, tended to occur more commonly in association with chickenpox than in nonchickenpox cases. Furthermore, Fujimara et al33 have presented evidence of a switch of the CD41 T cell profile in patients with varicella and underlying atopic dermatitis from a TH2 toaTH1 dominant type with a relative immunosuppressi...
Read 14 tweets
Lazarus Long Profile picture
Nov 16
I have my head so far up the governmental cow's butt on this one, I think I am uniquely qualified to answer on the difference between Biden and Trump on H5N1.

Ready for a🧵?
Biden's USDA is still denying airborne, and is still not telling the Spanish-speaking dairy workers that it is airborne. Or to wear an N95.

Biden's CDC is running Spanish ads on the radio and Facebook. Offering testing. Workers still not trusting the CDC.
Trump will get the CDC to continue to offer free testing clinics - and arrest the workers when they come in.

Nobody will want to milk or take care of the cows. They will continue to get sick, but really die without the intensive care they actually need with H5N1.
Read 15 tweets

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