Should be on every public vehicle, airplanes, trains, buses..wtf took so long

[pbmus]

Link to tweet

[soothsayer]

1. Cruise ships should have done this anyway

They’re so germy

[Midnight Writer]

4. Yes, infections spreading on cruise ships have been a long standing problem.

[Hortensis]

2. :) This is GOOD. And this how the vast majority of advances come about.

A problem arises, time passes as it's ignored, it finally becomes critical, and THEN it becomes too critical to ignore, and that drives needed action.

This time around governments could have passed laws requiring installation sooner, but hey, why bother to vote for good people in government when Democrats are no better than Republicans?

Oh, wait...! There's a little problem with that last, isn't there? WE're the "WFT took so long" and why haven't we still acted definitively to fix our problems?

At least some businesses are acting without waiting for us to do our part. That's something to be grateful for.

[keithbvadu2]

3. Trump's Christians say they have Trumpvirus killing technology.

Trump's Christians say they have Trumpvirus killing technology.

https://www.google.com/search?sxsrf=ALeKk00dkTi5b4178__YzYSEEVcKttYpvw%3A1592960966681&source=hp&ei=xqfyXurUJpupytMP4pONiAo&q=phoenix+church+safe+rally&oq=phoenix+church+safe+rally&gs_lcp=CgZwc3ktYWIQAzIFCCEQoAEyBQghEKABOgQIIxAnOgUIABCxAzoHCAAQFBCHAjoFCAAQgwE6AggAOgQIABAKOgQIABADOgYIABAWEB46BQghEKsCOggIIRAWEB0QHjoHCCEQChCgAVCOGlixWmCZaGgBcAB4AIABngGIAcsOkgEEMjQuMpgBAKABAaoBB2d3cy13aXo&sclient=psy-ab&ved=0ahUKEwjqz7qEopnqAhWblHIEHeJJA6EQ4dUDCAg&uact=5

https://www.democraticunderground.com/10142521178

Church leaders of venue hosting Phoenix Trump rally claim they've installed technology that kills '99.9 per cent' of coronavirus in ten minutes

'So when you come into our auditorium, it's gone - killed'

Surely Trump's Christians would not lie.

Yet you still have to sign a waiver.

[ironflange]

6. Their Trumpvirus killing technology is the HOLY BLOOD OF JEEZUS!

[Silent3]

5. No matter how good a filtration system is there are limits to their effectives with viruses

The smaller the space, the more effective they can be. But if someone a few feet from you is exhaling virus, that air is going to get to you well before it gets sucked up by a filtration system and passed through its filters. The virus won't linger around you long if there is sufficient air movement, but that's hard to achieve in a big space.

A few months back, when Trump held a rally at a church, remember the promise of a state-of-the-art air filtration system installed in the church? Not only was that bullshit, but there was no chance any system was going to work in such a large space anyway, not without gigantic fans howling like a hurricane to filter enough of the air frequently enough.

[Blue_true]

7. If laminar flow of air is employed, a person can be a foot from you and

their exhaling won’t reach if if the laminar flow is set up right. The air can be drawn off at floor level, then sent through a system that charges small particles. Such systems are available, but they are expensive. As part of the “Build back better” effort, such systems should get installed in every public place, such as restaurants, meeting halls of all types, airplanes, commuter rail and other transit systems. Local districts should be trained on how to inspect such systems and there should be an inspection every two years. Tax credits should be available to organizations or companies that install and maintain such systems on their properties. Over even a year, tens of billions of dollars will be saved as workers miss less work due to air borne viruses and other particulate toxins.

On edit: you made an excellent point about the size of a space. The larger the space, the greater will be the need for massive blowers to turn over air volume quickly. Those systems are very expensive and require periodic “balancing” due to room changes in the space they supply.

[Silent3]

8. I suppose if you're suggesting that you can get most of the air flow...

...to be vertical, rather than horizontal, and then the air can reach filtration before reaching other people, yes, I can see how that would help.

It's hard to imagine that being easy to arrange in many of the physical spaces people share together, however, especially spaces not originally designed with that kind of airflow in mind.

[Blue_true]

9. You make excellent points.

There would need to be redesign of ceilings, hence where some of the expense come in. But long term, such systems will save hundreds of trillions. If we had them in place before SARS-COV-2 reached us, we would have most likely avoided large scale shutdowns and hospitalizations.

[pbmus]

10. Triple Bingo....

[c-rational]

11. Good idea, but am not sure if you could ever get true laminar flow (Reynolds Number

Air dispersion allows molecules to move upstream, even in rivers with point sources of discharge.

[Blue_true]

12. True laminar flow is not needed, 70% of theoretical would be adequate.

The key is to get most of the goblets released from a person’s mouth driven away from the inhalation points (nose and mouth) for a second person, even one that is close by. Viral load seems to be a key number in determine whether a person gets sick, at least according to a few studies. Laminal flow, even if not ideal, would accomplish a reduction in the amount of a virus inhaled - unless the infected person sneezes directly at the other person

[Hermit-The-Prog]

13. But, you're interfering with my GAWD-given right to infect you! Commie!

Sorry. Too much news about the stoopit. I'll just head out west and help rake some forests.

[Blue_true]

14. It is really sad how far down Trump has taken the country.

I have visited California a lot. The big issue there, as well as in Western Oregon and Western Washington, is that lush grass grows during the early spring, I mean thick high grass. Then it turns a golden color as soon as Summer arrives, making for perfect fire starter. So the entire state would need to be mowed and the cut grass somehow gotten rid of and not left on the ground to become thick hay that is an even better fire starter. Add on top of that, much of the land that burn is federal land that California, Oregon and Washington don’t have administrative control over.