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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
Apr 24
Got bored. Let's just check out Google Scholar and E Coli. Oh my. Oh my, that's not good.

Yes, yet another episode of "that's airborne, TOO?!!!!!"

THREAD
Pigs:
"Airborne E. coli were isolated from indoor air,....and downwind air samples (10, 50, 100, 200 and 400 m away) for five swine houses" (1)

Cows:
"E. coli was isolated in both inside and outside air, even in samples taken 150 m from the farm." (2)

READY FOR THE FUN ONES?
Restaurants:
"E coli was identified as the most prevalent illness-causing bacteria in Zone A-derived aerosols (721 CFU)"
(3)
Hospital:
"The results also showed that airborne bacterial pathogens were present in all the sampled hospital wards." (4)

Ready for another fun one?
Read 6 tweets
Lazarus Long Profile picture
Apr 21
Pope Francis passed - R.I.P.

He died from not masking.

Not masking led him to getting polymicrobial respiratory infection (multiple pathogens) on 2/6/2025, leading to bronchitis, to bilateral pneumonia, a respiratory event
- leading to stroke and cardiac arrest.
Timeline here:
cbsnews.com/news/pope-fran…

History of respiratory challenges.
cbsnews.com/news/pope-fran…

And here showing every year lately having "respiratory infections."
usatoday.com/story/life/hea…
Why didn't he mask? The peer pressure must have been enormous. Even those who know better often don't mask out of fear of social castigation.

And that's why mask mandates work so well. They allow people to mask if they want to.

And those who don't want to? Won't. But...
Read 4 tweets
Lazarus Long Profile picture
Apr 20
Save this QR Code to your phone or save this tweet. Save it for the next time you get harassed by an antimasker.

This links to the article from March 27th, 2025, with Trump saying it was so nice of a reporter to be wearing a mask.

There's a video of him on this page.

/1 QR Code to https://web.archive.org/web/20250327191931/https://www.mediaite.com/news/trump-singles-out-reporter-for-wearing-mask-in-oval-office-you-feel-more-comfortable-right/
President Donald Trump stopped answering San Francisco Chronicle Washington correspondent Shira Stein, @shiramstein, to comment on her wearing a COVID mask in the Oval Office, remarking, “You’re wearing a mask! So nice of you!” SHIRA STEIN: Mr. President, you said you want to return education control to the states, how would you handle it if a state like California were to put in place education policies that you don’t agree with? PRESIDENT DONALD TRUMP: You know, I haven’t seen a mask in so long! You’re wearing a mask! So nice of you! I haven’ seen anybody wearing a mask in a long time. It’s good. You feel more comfortable, right? SHIRA STEIN: Yes. PRESIDENT DONALD TRUMP: Good. That’s good. So go ahead. SHIRA STEIN: You said you want to return education control to the states. How would you handle it if a sta...
Our faces, our health.

And we choose to mask.

Ms. Stein was later singled out by Marjorie Taylor Greene in her for wearing a mask.

Very insulting, at first. But, after Ms. Stein pointed out she was immuncompromised (also having had a stroke, higher risk), she
Read 9 tweets
Lazarus Long Profile picture
Apr 18
Trump is trying to distract from the economy. He just pumped out the Lab Leak from the official whitehouse.gov website.

Simultaneously making masking advocacy both more difficult and easier.

The Shrodinger Presidency. If only he had.... /+

whitehouse.gov/lab-leak-true-…
Of course I don't wish him dead in a box. That is against Twitter's TOS.

But, anyway, what do I mean? On the one hand, pointing out that Covid is probably a bioweapon means that you can point out the silliness of not protecting yourself against it.

On the other hand, this: Image
Which, of course, is silly as workers in BSL2-4 labs wear N95s and better to protect against bioweapons.

Heh. I can tell an antimasker wrote that because they screwed up the logic on it.

Mask mandates do NOT equate masks.
Read 6 tweets
Lazarus Long Profile picture
Apr 2
@TheAtlantic @danengber Heh - I suspect Mr. Engber has been eavesdropping on my (and my fellow Covid Conscious) swimming safer threads. I have a new solution for showering safer for that I will be rolling out tomorrow.

For future articles by those who will come along, let me point out a few things /+
@TheAtlantic @danengber Thank you very much for pointing out that 4% of America is still masking 100% of the time! That is 13.2 million Americans.

The Masking Nation is larger than 38 states. :)

But, 18% of us masking some of the time in the SAME PEW POLL (tch tch). You would think that would be/+ At a basic level, their COVID-conscious attitudes may not be so far from the mainstream. Twenty-one percent of Americans still think of the disease as “a major threat” to public health, according to a recent poll from Pew Research Center. Thirty-nine percent say we’re not “taking it seriously enough.” But if 50 million to 100 million adults harbor such concerns, very few are doing much about them. Masking rates were once as high as 88 percent; now they’re close to nil. For those who still maintain their masking habit—4 percent, says Pew—the whiplash in social norms has been a shock.
@TheAtlantic @danengber be mentioned, @TaylorLorenz, by Mr. Engber, since 18% lines up pretty closely to the 21% still worried that Covid is a big deal (it is) - that he mentioned.

And suddenly, Masking Nation has 59.4 million residents. We are the largest state. Canada /+

Read 14 tweets
Lazarus Long Profile picture
Mar 22
This may be one of the most important studies in a decade.

#LongCovidBinder.

"The models produced correctly classified those with severe ME/CFS from recovered controls with an accuracy of 97%, sensitivity of 94%, and specificity of 100%. "

THAT IS HUGE.
"We found that at Stage 1, those fated to develop ME/CFS 6 months following IM had low levels of IL-5 and IL-13 [25]. " We found that at Stage 1, those fated to develop ME/CFS 6 months following IM had low levels of IL-5 and IL-13 [25]. IL-5 enhances the production of B1 cells which are anti-inflammatory (impaired B1 cells have been found in multiple sclerosis, systemic lupus erythematosus, and rheumatoid arthritis), and IL-13 has anti-inflammatory properties. Jason et al. [26] also found that students who failed to recover from IM had more restricted, inflexible cytokine networks whereas those who recovered had more flexible, less interconnected networks. Network analysis suggests that IL-5 and IL-13 influe...
So, this means ME/CFS can be predicted.

And what can be predicted - treatments can be found.

And they are studying LongCovid as well.

This study is easy to read, And everyone should.

/+

mdpi.com/2076-2607/13/4…
Read 6 tweets

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