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Lazarus Long Profile picture
@LazarusLong13
Dec 20, 2024 • 13 tweets • 5 min read • Read on X
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Not sure what is going on with @HealthcareGlob1 - they sure seem to have it out for @NukitToBeSure.

They blocked me after I pointed out that they were incorrect. I could care less about being blocked.

I do care they did not address the issues I raised. 🧵
They retweeted this tweet from DisabledDoctor, which has numerous issues.

1. FARUVC has been safely
& extensively tested on the eyes. There are a rather large number of studies on the topic.

2. FARUVC will not cause AQ issues, besides a Yup. Not even considering the fact that she recommends using her far-UV devices in ways that are possibly unsafe (pointed at face as they are untested on eyes and in poorly ventilated indoor spaces where it is likely it will cause air quality issues leading to or exacerbating respiratory problems). She's harming vulnerable people while profiting off of them and she seems to give no fucks while somehow managing to get people to aggressively support her when she is (fairly) criticized. She's a master manipulator 8:08 AM 11 Sep 29, 2024 7,975 Views
negligible amount of ozone.

But that's not me saying that, but the studies. Two studies in well sealed rooms - about 5 parts per billion, 5 ppb.

If you are in a well sealed room, you would want that window cracked, anyway, right?

If not, and you are In summary, the two published measurements of far-UVC associated ozone in real-world settings, both around 5 ppb, are likely to be upper limits in terms of real-life far-UVC usage; this is both because of the far-UVC doses used in the studies, but also because both rooms were comparatively well sealed (respectively 0.4 and 1.4 ACH, see Table 1), whereas far-UVC will predominantly be used in public indoor spaces, which typically feature higher air-exchange rates.18 Overall it is reasonable to assume that far-UVC-associated ozone levels in real-life settings are extremely unlikely to exceed 1...
gobbling a quick bite in an airport, not a problem, anyway, (I will only be doing a sipmask and shakes, myself) - the ozone will dissipate.

Guess what gobbles ozone? VOC carbon filters. Hit my account plus MEGA VOC to find the build.

But 5 ppb? I am not worried about it.
But, IS 5 ppb a risk?

No risk as low as 10 ppb per this study...and we are 5 ppb below that, with ways to mitigate even that. In summary, based on multiple very large epidemiological studies focusing on the relationship between outdoor ozone concentration and long-term human health, there is no significant evidence for increased ozone risks at ozone concentrations as low as 10 ppb, and there is persuasive evidence for a threshold in risk at ozone exposures below about 35–50 ppb; this pattern does not change whether or not other associated pollutants are included in the risk estimate. Although far-UVC lamps are not classified as medical devices, the epidemiological results are consistent with current FDA guidelines...
VOCs and ozone? You are right to be concerned - and now not be concerned 👇.

But...cleaning with limonene based cleaners (Citrus King , citrus smelling cleaners probably) ?

Turning off the FARUVC would be a reasonable thing to do.

onlinelibrary.wiley.com/doi/full/10.11…Indoors, at the low induced ozone concentrations of relevance here, ozone does not react rapidly enough with preexisting airborne VOCs to compete with even extremely low levels (e.g., 0.1 ACH) of room ventilation, so significant ultrafine particle production via far-UVC-induced ozone is unlikely. Experimental measurements in a real-life hotel room support this conclusion. One specific exception is the cleaning material limonene, which has an unusually high interaction cross-section with ozone; in the far-UVC context, turning off far-UVC lights during cleaning with limonene products would be...
Is Nukit just trying to just make a buck, taking advantage of the vulnerable?

No - lol. They are a huge influencer.

The vulnerable? They are the reason Nukit started w/UVC, to provide Covid free air to the poor jammed into tiny apartments with no room for CR boxes. Indoors, at the low induced ozone concentrations of relevance here, ozone does not react rapidly enough with preexisting airborne VOCs to compete with even extremely low levels (e.g., 0.1 ACH) of room ventilation, so significant ultrafine particle production via far-UVC-induced ozone is unlikely. Experimental measurements in a real-life hotel room support this conclusion. One specific exception is the cleaning material limonene, which has an unusually high interaction cross-section with ozone; in the far-UVC context, turning off far-UVC lights during cleaning with limonene products would be...
Finally, there has been a fair amount of discussion of the picture on the Cybermarket website.

Does it depict closer than 50 cm, which is the safe distance as amply discussed by Nukit?

cybernightmarket.com/products/mini-…Cybermarket 75 cm from faces.
Suggested use: Assuming no more than four hours of use in a single day, and an approximate room size of 9-12m², each lamp should be positioned no closer than 50cm away from a room occupant. The more widely the lamps are spread, the more air volume will be exposed. If there are children or pets present, the lamps should be placed well out of reach. For more information, see: How to use your Nukit Torch Far-UVC Lights
No. It is 75 cm. I DM'd that party.

I am in blue, they are in gray. Unless you are IN your dinner plate with your head, these are about an arm length away from your eyes 10:17 PM 3 feet then? At least 91 cm ? I have some long arms....but I went to be accurate. 10:18 PM Between 2 and 3 feet, so roughly 75cm 10:18 PM Ok, thank you.
Here is more by Nukit.

"... 200nm to 230nm is often described as “eye and skin safe” but is perhaps more accurately described as “safer”. There is still an exposure limit- just much, much higher than with other portions of the UV spectrum." Description: The germicidal properties of ultraviolet light are well established and have been in use for almost 100 years, but that effectiveness has always come at a price- the potential for eye and skin damage. Far-UVC, the portion of the ultraviolet spectrum that ranges from 200nm to 230nm is often described as “eye and skin safe” but is perhaps more accurately described as “safer”. There is still an exposure limit- just much, much higher than with other portions of the UV spectrum.
What are my biases?

I have disagreed with Nukit in the past on a couple of non-technical issues, but these are times fraught with tension.

On the technical issues, I have found them
incredibly knowledgeable, and I very much appreciate their engineering.

Anyone accusing Nukit of endangering others are simply not knowledgeable on the topic.

Do I have a Cybermarket light? No. Do I anticipate getting one? Maybe in the future, if they are still available.
I have other projects I am currently interested in.

Am I an expert in FARUVC? No, but I can sure read a study.

And so can you.

Where can you buy the lights?

Right here:

cybernightmarket.com/products/mini-…

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More from @LazarusLong13

Lazarus Long Profile picture
Sep 7
COVID is as transmissible as measles?!

"BUT, BUT, measles can infect up to 90% of people they are in contact with!"

So can COVID.

Time to wake up. The lecturer tried to promote sales of a flax oil product, and many elderly people were lured to attend by the promise of free eggs, Xinhua News Agency reported. He gave three lectures on Jan 10 and 11 in a Tonghua classroom while not wearing a mask, with each lecture lasting about 2.5 hours. A total of 97 people, most of them retirees, attended the lectures in a classroom whose doors and windows were closed, the China CDC report said. The lecturer went to a pharmacy at noon on Jan 10 due to muscle pain and other symptoms, indicating he was likely at an early stage of the disease then, it ...
weekly.chinacdc.cn/en/article/doi…

govt.chinadaily.com.cn/s/202102/20/WS… Image
So, some will be pushing back - always welcome, albeit this is anticipated.

Rnaught is just an estimate.

The famous measles 12-18 is shown below.

But the R0 of 6-8 has the most estimates.

Free
sci-hub.se/https://doi.or…

Pay
sciencedirect.com/science/articl… Image
Read 8 tweets
Lazarus Long Profile picture
Sep 6
Remember THAT scene from Outbreak with Dustin Hoffman - "It's Airborne." ?

SARS-COV-2 is airborne via HVAC. Just like TB is - but it is way more contagious.

Still no panic, right? We know how to be safe.

Motel 6, or AirBNB - no shared HVAC, is best.

But HOW do we know?

🧵
A recent study in South Africa used Syrian Hamsters to duplicate the study that finally convinced everyone that TB was airborne.

The TB study is interesting because the military vets in VA hospitals were getting infected disproportionately.

So, they used HVAC ducting to In 1956, tuberculosis was a major global killer, and it disproportionately affected military veterans hospitalized in the Veterans Administration hospital system. Then, as now with COVID-19, epidemiologists held that tuberculosis and other respiratory diseases were spread by large infected droplets through person-to-person contact or contaminated surfaces. But Richard L. Riley, an expert on lung physiology at the then Johns Hopkins School of Hygiene and Public Health, and his mentor, William F. Wells, had identified another possible mode of transmission.
connect a 6 room TB ward to 150 guinea pigs.

Of those 150, only 3 PER MONTH got infected.

Illustrating that TRANSMISSIBILITY is just a CLUE to if something is airborne.

Dr. Riley went on to patent UVC tech, and develop the Wells-Riley equation which is so important in airborne Atop the Baltimore VA Hospital, they constructed an air-tight closed ventilation system that connected a six-room tuberculosis ward to an exposure chamber with 150 guinea pigs. (Among rodent animal models, only guinea pigs could cough and sneeze, making them ideal for studying how respiratory diseases spread.) The guinea pigs were exposed to the infected air over a four-year period. A second group of 150 guinea pigs acted as controls: their air ducts were irradiated with UV-C lamps to kill TB bacilli.
In the test group, an average of three guinea pigs per month contracted TB, while no controls were infected. The experiment not only proved the airborne disease transmission of tuberculosis for the first time, but also quantified how many TB infections could be expected to result from exposure to a given number of patients over a defined interval.
The insights from the Baltimore VA Hospital studies were later used to develop the Wells-Riley equation, which quantifies infection risk and informs strategies to ensure staff and patient safety in contagious clinical environments. The model can also calculate the risks of transmission for airborne infections on planes and trains, in prisons, and in other public and institutional spaces. As chair of the Department of Environmental Medicine from 1960 to 1977, Riley warned that the danger of infection from airborne diseases was increasing as people spent more time indoors and air conditionin...
Read 8 tweets
Lazarus Long Profile picture
Sep 1
Plaque, Stephan's Curve (Imperative) mixed with breakfasts that you can brush immediately after.

It's actually best if you brush immediately up on waking up. This gets the overnight plaque.

It starts forming 4-6 hours after you sleep - your saliva is 20 millititers/hr Dental Plaque on the bristles of a used toothbrush. Yep, that came out of your mouth.
- during the day. At night? Just 3-6 ml.

Saliva washes away the bacteria, it contains bicarbonate, phosphate, and protein buffers that neutralize the acids being pooped out by the bacteria.

It also has the below ingredients. Who knew saliva was so cool?!

Or plaque? Antimicrobial Components Lysozyme: breaks down bacterial cell walls. Lactoferrin: binds iron, starving bacteria. Peroxidases: inhibit bacterial metabolism. Immunoglobulin A (IgA): prevents bacterial adhesion to teeth.
Plauque forming bacteria.
By brushing first thing, fluoridating, and then waiting a 1/2 hour before eating, you just prepped your teeth for their Acid Trip through the day.

Like if you like salsa on your breakfast burrito like I do.

But what is a good breakfast if you have NO TIME to wait for the 60 tripping the light fantastic.
Read 35 tweets
Lazarus Long Profile picture
Aug 27
Ah, it's that time of year again. The pitter patter of children's feet. The laughter of high school students as they flirt with each other.

The coughs of their parents.

Is a Portable Air Cleaner (PAC) on a desk aimed at the wee ones' faces going to protect them? Spicoli from Fast Times at Ridgemont High with a Levoit Air Cleaner pointing at his face braced up with a weight. In the middle of his pizza. Not cool, man, not cool.
TLDR? No. They need to be in a N95 or KF94 purchased from legit distributors, not from Amazon, and eat their food outdoors, spaced far enough away from their friends so as not get infected. Or use @sipmask and protein shakes at lunch in the cafetaria.

You need to teach them
about how it can take as little as one breath of uncleaned-air to get infected (100 virions study on my profile). How it can mess them up in terms of their entire body.

You need to have the "Birds and the Bees and Covid" talk, in other words.

But will a PAC aimed at their
Read 24 tweets
Lazarus Long Profile picture
Aug 23
People often underestimate the power of having someone with the reputation of Wolfgang Leitner, weighing in.

This is truly a significant development.

Personally, I prefer to let the studies do their own talking, but Voice Of Authority bears considerable weight in the real world
Just a few awards Image
An actual Conference Organizer. You underestimate the political savvy and pull this takes - and gives them. Image
Read 7 tweets
Lazarus Long Profile picture
Aug 21
Calley is lying from the very first sentence. The media is not cheering for MAHA to fail. They are cheering for antivaxxers to fail.

We all want to see better food, less chemicals.

But we are not idiots.

The single largest gain in American life expectancy was
between 1900 and 1940, primarily because of improved water & sewer sanitation. Adding 16 years of life expectancy.

And vaccines are a close second - adding 5-10 years a bit later - in the last half of the century.

If we get rid of vaccines? We lose 5 to 26 years, depending
if we lose smallpox and diptheria.

There's another thing. Calley wants us working on the below things.

The Red Arrows point to things that will not mean a thing because of the next tweet. Image
Read 15 tweets

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