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(Journal News)   Metro North rolls out COVID-killing train air purifiers. Still no cure for that vomit smell that's been there since St. Patrick's Day 2007   (lohud.com) divider line
    More: Interesting  
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867 clicks; posted to Main » on 16 Oct 2020 at 6:50 PM (8 days ago)   |   Favorite    |   share:  Share on Twitter share via Email Share on Facebook



18 Comments     (+0 »)
 
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2020-10-16 6:24:04 PM  
I was wondering if it was gonna be UV-C robots that do an after hours disinfectant run through the train. If I was marketing those, I'd be tempted to license some BBC IP and have them saying "EXTERMINATE! EXTERMINATE!"
 
2020-10-16 6:53:55 PM  
This is good news, provided they really can do what they're saying they can do.
 
2020-10-16 6:56:05 PM  
Good for them.
I've traveled on Metro North for years.
Never noticed vomit smell.
On the other hand, I make it a point to avoid NYC on St Patrick's Day (Tartan week is fine, though).
 
2020-10-16 7:08:59 PM  

Unobtanium: I was wondering if it was gonna be UV-C robots that do an after hours disinfectant run through the train. If I was marketing those, I'd be tempted to license some BBC IP and have them saying "EXTERMINATE! EXTERMINATE!"


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that's one way to enforce mask and social distancing rules
 
2020-10-16 7:11:53 PM  
Here's a little more about the filtration system from the company's website. I can't tell enough to judge it.
 
2020-10-16 7:19:30 PM  
you might want to turn that down a bit...
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2020-10-16 7:19:48 PM  
little weird to have a pic of the guy touting air purifiers wearing a mask.

jes sayin'

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2020-10-16 7:25:01 PM  
If the drug corporations don't save us, im sure the machines will. I also bet there's a cure for Covid-19 buried under the antarctic ice.
 
2020-10-16 7:29:45 PM  
Well, I get that a COVID-killing train might be a tad extreme, but why would we purify it?
 
2020-10-16 7:39:37 PM  
Of course Metro-North gets nice stuff before the LIRR.
Metro North carries a lot more White collar and wealthy commuters than the LIRR.
 
2020-10-16 7:44:47 PM  

SuburbanCowboy: Of course Metro-North gets nice stuff before the LIRR.
Metro North carries a lot more White collar and wealthy commuters than the LIRR.


On the other hand, the LIRR carries more mass shooters.
 
2020-10-16 7:51:03 PM  

Psychohazard: Here's a little more about the filtration system from the company's website. I can't tell enough to judge it.


I'm sure it works great once the virus hits the air return.  You are SOL if you are the primary filter though.  Lots of gyms around here use something similar.
 
2020-10-16 8:13:43 PM  

Psychohazard: Here's a little more about the filtration system from the company's website. I can't tell enough to judge it.


Damned impressive on paper... Mechanical filter, then electrostatic pulldown filter, then UVC irradiation, then ion bombardment.

They claim that the mechanical filter has essentially 100% catch at 2.5um particle size. This would be classed as "microparticulate" but it isn't HEPA (probably because a HEPA filter that could handle the air volume would be too large).

The ES pulldown section... I don't know enough to comment but it will be particularly effective against water droplets because they have a very large dielectric polarizability.

If the UV system can dump 2.5J of UVC through any given volume of air before it exits, that alone guarantees 100% kill of things like Covid (ssRNA viruses don't handle irradiation well - this is likely why it dies in only 10-15min under sunlight as well).

Then they pour ions into the air to do oxidative damage. This will also have the side effect that it will, in fact, tend to eradicate that vomit smell because the ions will beat up and oxidize odiferous molecules as well.

But yeah, standard proviso:

Turbo Cojones: I'm sure it works great once the virus hits the air return. You are SOL if you are the primary filter though. Lots of gyms around here use something similar.


But by keeping the density of bad particles in the air way down, it will greatly reduce the rate of transmission, and every little bit helps.
 
2020-10-16 8:15:29 PM  

SuburbanCowboy: Of course Metro-North gets nice stuff before the LIRR.
Metro North carries a lot more White collar and wealthy commuters than the LIRR.


lirr got new train cars last year, half the time i took metro north in the before times i got the cars that are still hanging around from the 80s
 
2020-10-16 9:09:29 PM  
I have been wondering about these types of devices for a while since the pandemic hit. I'm glad people are starting to implement them.

The ionization is what should quickly decrease the virus as in charges small particulates in the air causing them to stick together and fall out of the air. It does create ozone that can be an irritant to the lungs, however on train with air moving and being replaced every 5 minutes this is likely to not be an issue. UV should also help kill virus, but it's a question of contact time there. If the airflow makes the virus fly past the light too fast, it wouldn't cause enough damage to the virus genome to render it neutralized. UV-C bulbs, that generate light that doesnt penetrate the skin (to cause cancer) can be used in the open to destroy virus. Hospitals I think are using these germicidal lamps.
 
2020-10-16 9:17:50 PM  
Lovely Head (Miss World Mix)
Youtube pITQ9E9UQc4
 
2020-10-16 10:10:55 PM  

erik-k: Psychohazard: Here's a little more about the filtration system from the company's website. I can't tell enough to judge it.

Damned impressive on paper... Mechanical filter, then electrostatic pulldown filter, then UVC irradiation, then ion bombardment.

They claim that the mechanical filter has essentially 100% catch at 2.5um particle size. This would be classed as "microparticulate" but it isn't HEPA (probably because a HEPA filter that could handle the air volume would be too large).

The ES pulldown section... I don't know enough to comment but it will be particularly effective against water droplets because they have a very large dielectric polarizability.

If the UV system can dump 2.5J of UVC through any given volume of air before it exits, that alone guarantees 100% kill of things like Covid (ssRNA viruses don't handle irradiation well - this is likely why it dies in only 10-15min under sunlight as well).

Then they pour ions into the air to do oxidative damage. This will also have the side effect that it will, in fact, tend to eradicate that vomit smell because the ions will beat up and oxidize odiferous molecules as well.

But yeah, standard proviso:

Turbo Cojones: I'm sure it works great once the virus hits the air return. You are SOL if you are the primary filter though. Lots of gyms around here use something similar.

But by keeping the density of bad particles in the air way down, it will greatly reduce the rate of transmission, and every little bit helps.


You should come visit the local news forums.  Unless a thing is 100% effective in getting us back to normal, they don't want it.
 
2020-10-17 10:02:46 AM  

TrashcanMan: erik-k: Psychohazard: 

You should come visit the local news forums.  Unless a thing is 100% effective in getting us back to normal, they don't want it.


I just stand between two fat guys.  They suck up all the bad
 
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