Air purifiers in Finnish daycare reduced children's illnesses by 18% in a carefully controlled study. This implies huge potential for better public health and cost savings from sick leaves, with a simple intervention against airborne infections.
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This is another piece of evidence of how societal and economic burden of COVID, flu and other infections can be substantially reduced 
. We must reject the narrative of these as an inevitable part of life. Let's clean the air, like we once learned to clean the water 
.
. We must reject the narrative of these as an inevitable part of life. Let's clean the air, like we once learned to clean the water .
Plus a much larger set of controls. One can get robust results with a clever and well controlled study design even if the sample size is not huge. The team is very competent. Looking forward to the paper; now they just put out a press release.
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Is it possible that getting sick as a child also has benefits in building an immune system early on? How do we measure the risk/benefit of stressing the immune system?
So simple. Love it.
I'm honestly curious does this have any long term health effect? Eg. kids immune system not prepared enough when going into other areas. Where they just get sick.
Or long term premature death because of not enough pathogen exposure.
These findings are a powerful reminder of the impact that clean air can have on public health, especially for our youngest and most vulnerable. Reducing illness with simple air quality measures isn't just possible—it's necessary. Let’s advocate for healthier environments in all
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Or they could hire proper cleaners to clean the place everyday.
In Sweden kids are left to dribble and drool everywhere and places are not cleaned daily.
Kids need to get sick.
Rates of eczema (allergy to house dust) are much higher in Japan than the west because parents sanitize everything there.
Then what does this tell us? The poison to the body must be in the room. Does it come from the router, carpet, paint, poor air quality air? It definitely is not from mythical infections.
Why are there Africans in Europe?
That African child is going to grow up and become politically involved in a far left political party that is anti European and fundamentally wants Europeans dead and gone.
See ? Cleaning the air helps!
All you need to do now is:
measure where needed
install quality/low-noise ones
educate staff on why they matter
mandate they be turned on
measure their effectiveness (making changes where necessary)
Show more measure where needed
install quality/low-noise ones
educate staff on why they matter
mandate they be turned on
measure their effectiveness (making changes where necessary)
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Imagine if there were more air purifiers in use and Far-UVC lights on the ceiling? Sickness would decrease even more significantly and savings would come as absenteeism decreases and functional capacity improves.
Seems they used at least Lifa Air purifier. ~600€ a pop. According to Google, there are a total of 3,617 kindergarten-style establishments in mainland Finland.
Huge benefits start from day one, with a lousy few million investment.
let's get this done.
Not only that but installing an air purifier in a classroom can raise a class’s test scores by as much as if they had cut class size by a third.
A THIRD.
Just by installing an air purifier
You can build your own air-filter that works really well, too! It's a little harder to build here, just because we don't have as many big AC units, so the filters are a pain to get, but--
Any idea about the cfm for the air cleaners in question? Room size and ACH?
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combine that with upper-air UV-C and watch illnesses plummet! it'll happen - eventually everyone will figure it out.
Way to go Finns! they have one of the best school systems *in the world* - doesn't surprise me that they're doing this <3
Upeaa -- crossover asetelma! Mutta oliko sokkoutettu arviointi infektioille
any thoughts, why not have this tested in Germany? thank you.
sain vihdoin ostettua ilmanpuhdistimen tos kesällä. en kyl tiiä onks vaikutusta.
. and the , the largest of these GHIs, “really challenged the established ways of working through the World Health Organization."
Finally, this is happening. 
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I wonder how much of that was reduction of airborne pathogens, and how much that there happened to be mold damage on those day cares.
Continued exposure to mold spores does decrease immune response to respiratory illnesses.
This makes perfect sense. Sadly most children's care centers in the US are private and it is much more difficult to force them to upgrade air filtration systems .
My first impulse is that this might somehow be bad for their immune system down the line. Cleaner kids develop more allergies.
Do they talk about that? :)
On valitettavaa, ettei YLE julkaissut tietoa, mistä tutkimuksen voi saada luettavaksi.
Yeah, but most air purifiers are ripoffs. You'd be better off taking a furnace filter to a box fan.
Alas, no AR-15 pin wearing Republican lowlife will ever give a damn about the life or health of American children.
our kids had one illness after another for a year while in daycare. It was miserable, but they are now in their early 20s and have gone for years without any sickness. You acquire some excellent immunity at daycare!
Is One Health really an agenda of only the Global North? Panelists at an event last week, hosted by the , think otherwise.
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It's an eye opener!
India & China are sleeping over the pollution problem
Fresh air is good for you, what a surprise. We could save a lot of money on research by just asking a few smart people first.
I am curious about the use of air purifiers.
Positives - They don't involve downsides present in other measures
They might also reduce exposure to VOC from building material outgassing in buildings, thus reducing headaches and increasing academic performance.
The University of Bonn did a study and actually measured the effect of air filters on COVID, and not just in a lab setting.
What was the real life result? In 10 kindergartens with HEPA air filters, TWICE as many children got sick as the 22 without...
bmjopen.bmj.com/content/13/7/e
What was the real life result? In 10 kindergartens with HEPA air filters, TWICE as many children got sick as the 22 without...
bmjopen.bmj.com/content/13/7/e
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But I am also skeptical of air purifiers in schools because:
1) Some viral challenge studies don't seem to find a clear dose-response relationship, at least not linear.
2) Many benign viruses may have protective effects through cross-immunity. Is reducing them a net harm?
It implies nothing unless you give us the raw figures. How many illnesses before and after purifiers. If there were 6 illnesses before and 5 after, that's not much of a drop.
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All these kids are gonna have shitty immune systems and will be frequently sick when they grow up to be adults. Kids need infections for their immune systems to mature. SMH.
I don't like it. This creates squishy weak immune systems long term for the children. Our immune systems need target practice.
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PSA to all the unmasked healthcare workers who have assured me I'm safe without an N95 because staff don't come in *if they have symptoms*
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"The most contagious period is shortly before they become symptomatic - 2 to 3 days beforehand, and shortly after"
Asymptomatic transmission - this is how #SARSCoV2 does spreads so successfully
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Coworker: I was on the plane the other day, flying home and *everyone had #Covid.*
I turn around to make sure she had a mask on. Nope.
And I work in healthcare.