[QUOTE=ugly2dog;543810]I work at an MEP engineering firm doing control design. UV lights have been standard in AHUs for hospitals, either at day one or for future installation. One recent news release advises against home UV wands for home use [can't find the link ATM]. Normally they don't want untrained people causing more harm than good. Also you must us the correct type [UV-C]. Good luck and stay safe.[/QUOTE]

Thanks! You too.

This is one of the reasons I like hanging out on the MF. Ask a serious if rarified question, and you're certain to get a knowledgeable answer! :smile:

UVC is much more effective. Also the flux used in devices tends to be very high.

Here is a paper that tries to use UV254 to predict what solar UV might do.
[url]https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1280232/[/url]
You will nee more than an hour per side. Alternately 70C for 5 minutes in the oven (what I heard an expert say would 'kill' it).
I recommended previously to some folks elsewhere (based upon my experience in a lab and data that I have seen about the virus): use a covered dish (metal foil tight to the top will work), a ramekin of ~250cc H[SUB]2[/SUB]0, place in oven, set oven for 150C, leave for 1 hour, turn off oven, uncover the dish, leave in close oven for 10 minutes.

In my erstwhile place of employment there is a grey water system. It was supposed to capture roof runoff from a very large roof. This was to be filtered, sanitized, and used to flush toilets. Sanitizing involved a chlorine (bleach) injector, followed by a UVC unit. This is a cylinder 4-5 feet long with connections on either end for 6 or 8 tubes. Servicing the chlorinating system ruined a lot of clothes. Long before I arrived there, they had given up on actual grey water processing. The system is now fed by city water and the sanitizing units are shut down.

One of my brothers gave our parents a high tech air purifier which included running the air through a UV chamber. The tube died once, and the brother who sought a replacement had to really convince the supplier that he knew what he was doing and that the fixture was enclosed.

Trump says briefings 'not worth the effort' amid fallout from disinfectant comments
 

[URL]https://www.theguardian.com/us-news/2020/apr/25/donald-trump-stays-away-from-briefings-amid-fallout-from-disinfectant-comments[/URL]
Let us hope the minders keep his muzzle on outside "Executive Time" areas. Hours of free TV again, as in the 2016 runup, has to stop and stay stopped. Not holding my breath, though. He's probably already jonesing bigly for his bullying pulpit.

[QUOTE]After more than a month of near-daily White House coronavirus press briefings, [URL="https://www.theguardian.com/us-news/donaldtrump"]Donald Trump[/URL] stayed behind closed doors on Saturday after advisers reportedly warned the president that his appearances were hurting his campaign.

Trump himself referenced his absence when he wrote on Twitter that the briefings are “not worth the time & effort”. The president wrote the tweet on Saturday evening, when he would usually be taking the podium to address journalists.
“What is the purpose of having White House News Conferences when the Lamestream Media asks nothing but hostile questions, & then refuses to report the truth or facts accurately,” he wrote. “They get record ratings, & the American people get nothing but Fake News. [U]Not worth the time & effort!”[/U] [U]:missingteeth:[/U]

In recent weeks Trump has used the briefings to dole out unproven and debunked medical advice, suggesting that things like sunlight and an anti-malaria drug are cures to Covid-19, often causing his own medical experts to try to correct the record.
But on Friday Trump surprised observers by taking no questions and stalking out of the room after an unusually short briefing of just 22 minutes. Some took the move as an acknowledgement from Trump himself that he may have taken things too far when he said on Thursday that disinfectant could be used to cure Covid-19.
[/QUOTE]

A SPOONFUL OF CLOROX - A Randy Rainbow Song Parody
 

Nothing I can add. :smile:

[YOUTUBE]DPDPzbLFeP4[/YOUTUBE]

[QUOTE=kladner;543838]Nothing I can add. :smile:

[YOUTUBE]DPDPzbLFeP4[/YOUTUBE][/QUOTE]Magnificent!

Now distributed more widely.

Estimates of suicides plus OD deaths added by substantial unemployment due to covid19 countermeasures outnumber the projected covid19 death total. [url]https://www.linkedin.com/pulse/pandemic-2020-layoff-related-deaths-increase-covid-19-cordle-cfa[/url]

I think/hope he's a better doctor than statistician. There's likely to be a considerable selection bias in people who get tested during this time period. And when he quotes figures like "0.13 risk" the numbers immediately preceding are consistent with 0.13 PERCENT risk. The comments about immune system fade in the absence of exposure to a variety of normal pathogens are particularly interesting; shelter in place for long periods would make a person more prone to problem infection later.

"Why are we being pressured to add covid?"
Covid didn't kill them. Twenty five years of tobacco use killed them.
Why would you quarantine the healthy? It doesn't make any sense.
It is not statistically significant whether you lock down or not.
Isolation for months leads to a weaker immune system.
We think the risks of social isolation are too high.
[URL]https://youtu.be/xfLVxx_lBLU[/URL]

[QUOTE=kriesel;543851]Estimates of suicides plus OD deaths added by substantial unemployment due to covid19 countermeasures outnumber the projected covid19 death total. [url]https://www.linkedin.com/pulse/pandemic-2020-layoff-related-deaths-increase-covid-19-cordle-cfa[/url][/QUOTE]Meanwhile, the rest of the world doesn't suffer from these problems to anywhere the same extent as USA. Come on USA, get your :poop: together.

[QUOTE=retina;543853]Meanwhile, the rest of the world doesn't suffer from these problems to anywhere the same extent as USA. Come on USA, get your :poop: together.[/QUOTE]
Good one! When countries are ranked by suicides per hundred thousand people, the US is a fair way down the list.

[QUOTE=Dr Sardonicus;543857]Good one! When countries are ranked by suicides per hundred thousand people, the US is a fair way down the list.[/QUOTE]

Good one! When folks are discussing "suicide plus OD deaths", you note only that we're not at the top of suicide deaths. Did you check where we are for OD deaths?

Hint: [url]https://www.worldatlas.com/articles/10-highest-overdose-and-drug-related-death-rates-in-the-world.html[/url]

The hint is merely the first link I clicked on, to see if your point applied to what they were actually discussing.