Germany Ditches Climate Energy Efficiency to Combat Coronavirus

German Daily Coronavirus Cases
German Daily Coronavirus Cases. Source Guardian / Johns Hopkins

Guest essay by Eric Worrall

German Chancellor Angela Merkel is pushing a simple and likely effective strategy to combat indoor Coronavirus spread; open the window.

But nobody is talking about what letting all the heat out through open windows will do to winter energy demand, and the pressure this will place on already financially stressed German families suffering energy poverty, thanks to Coronavirus lockdowns and Merkel’s failed Energiewende.

Germans embrace fresh air to ward off coronavirus

Angela Merkel says ventilation may be one of cheapest and most effective ways of containing virus

Kate Connolly in Berlin
Thu 1 Oct 2020 00.18 AEST

Ventilating rooms has been added to the German government’s formula for tackling coronavirus, in refreshing news for the country’s air hygiene experts who have been calling for it to become official for months.

The custom is something of a national obsession, with many Germans habitually opening windows twice a day, even in winter. Often the requirement is included as a legally binding clause in rental agreements, mainly to protect against mould and bad smells.

But while some people may dismiss the method as primitive, “it may be one of the cheapest and most effective ways” of containing the spread of the virus, Angela Merkel insisted on Tuesday.

The German chancellor explained that the government’s guidelines to tackle the virus, encapsulated in the acronym AHA, which stands for distancing, hygiene and face coverings, will be extended to become AHACL. The “C” stands for the government’s coronavirus warning app, and “L” for Lüften or airing a room.

“Regular impact ventilation in all private and public rooms can considerably reduce the danger of infection,” the government’s recommendation explains.

Read more:

The idea is simple; if Coronavirus transmission mostly occurs indoors, bring the outdoors inside, to cut virus transmission.

The problem with this simple solution is millions of Germans, including business owners, won’t be able to afford to let the heat out. Many Germans already suffer severe fuel poverty, thanks to years of unsuccessful but hideously expensive German renewable energy policies.

Defeating Coronavirus may come down to a simple choice; let the virus take its course, or abandon expensive renewable energy and climate policies which encourage recirculation of virus contaminated indoor air.

We need abundant affordable energy and maximum possible indoor ventilation, to cut transmission by driving virus contaminated indoor air from homes and businesses.

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October 4, 2020 2:08 am

“financially stressed German families suffering energy poverty”

What a stuss!
The virus is spreading not in “family houses”, but in public locations, including schools, markets, offices.
What has that ot do with “families suffering energy poverty”?

Reply to  Alex
October 4, 2020 5:32 am

I had a family member get the Corona recently. The other 4 members in their tiny house tested negative. He was ill for 2 days and is fine. However, they were quarantined for 12 more days.

Reply to  Derg
October 4, 2020 10:12 am

The German idea of opening windows is very healthy. Their windows which can open about either a vertical or horizontal axis are very cool.

I spent the summer there in ’78 , the windows were opened and the massive “continental quilt” was hung out of the window for a hour or so. Probably wise after having a smelly, young “Englander” in the house.

Patrick MJD
Reply to  Greg
October 4, 2020 6:04 pm

“Greg October 4, 2020 at 10:12 am


The “Englanders” originated in Northern Germany, the Angles.

Reply to  Alex
October 4, 2020 6:20 am

Nothing you have said is remotely true .. why don’t you start by actually reading before sprouting falsehoods.
Refugee homes have incredibly high infection rates because they have no real way to do controls.

Schools and work places are incredibly low in the German stats so much so everyone is looking at it to see if they are just missing it.

Reply to  LdB
October 4, 2020 10:00 am

Angela Merkel says ventilation may be one of cheapest and most effective ways of containing virus

“Contain” the virus by letting it out. Do viruses not understand irony ??

I guess that must have been the memo they sent round to the Wuhan P4 biolab !

I hope someone can tweet to Trump that he must open all the windows at Walter Reed, twice per day.

Dennis G Sandberg
Reply to  Greg
October 4, 2020 1:59 pm

Greg, my same immediate reaction, wasn’t an open window at the Wuhan lab how we got started on this journey? Containment has gone from confusing to bizarre to ridiculous.

Reply to  Dennis G Sandberg
October 7, 2020 3:16 pm

In a word, “conbizidiculous”!

Reply to  Greg
October 4, 2020 4:52 pm

My response is to Alex you relate it to a different quote … his exact quote which is a complete falsehood

>>>> The virus is spreading not in “family houses”, but in public locations, including schools, markets, offices. <<<<

Shanghai Dan
Reply to  Greg
October 4, 2020 5:34 pm

I take it you’ve never worked in the pollution/toxin abatement field.

The solution is dilution.

Take those spores, and reduce their density per cubic meter down to a non-issue level, and you’re done. Especially in light of the fact that sunlight destroys the virus quickly:

Airing out your home is probably the best thing you can do to reduce spreading in your house.

Philip Mulholland
Reply to  Shanghai Dan
October 5, 2020 1:37 am

“Our most striking observation to date is the powerful effect that solar light appears to have on killing the virus, both surfaces and in the air,”

Given that this virus is supposed to have come from a nasty dirty smelly faeces infested bat-cave why is this surprising?

October 4, 2020 2:15 am

Coronavirus meets climate crisis.
Real crisis meets faux crisis.

Dodgy Geezer
Reply to  Herbert
October 4, 2020 3:03 am

Actually, coronavirus epidemics seem to sweep over humanity quite frequently. We get a rise in endemic flu most winters, and occasionally we get a new varient (usually a mutation from an animal reservoir) which can be fairly lethal until we get exposure and develop immunity,

Over the last century we have had three major epidemics of this type – 1918 (H1N1) ‘Spanish’, 1957 (H2N2) ‘Asian’, and 1968 (H2N2) ‘Hong Kong’. We will contrinue to have these about every 20-50 years. I don’t know that I would call this a ‘crisis’. Up to now we have just lived with it…

Reply to  Dodgy Geezer
October 4, 2020 5:58 am

This is the first Coronavirus pandemic.

Reply to  Adsm
October 4, 2020 8:34 am

In 2003 the Coronavirus SARS-CoV-2 was declared a Pandemic. “SARS-CoV-2 is the virus that causes COVID-19. Others can decide whether this is a quibble or a distinction.

Curious George
Reply to  Adsm
October 4, 2020 8:37 am

Under a recently modified definition of a pandemic.

Reply to  Curious George
October 4, 2020 9:33 am

Curious George
October 4, 2020 at 8:37 am

An infection disease fully indisputably dominating over the whole spectrum of similar diseases in the global meaning, as per global, in the matter of a “seasonal” or a distinct epidemic period.

How could you want it more pandemic-epidemic than this!

There could not be higher than this, as far as epidemics or a pandemic could go.

Yeah, ok, you have a point… as in the gaze of this one, any prior Pandemic(s) not really real as per the concept.


Reply to  Adsm
October 4, 2020 9:35 am

This is the first real Pandemic.

Reply to  whiten
October 4, 2020 10:06 am

Rubbish. Black plague ? Spanish flu ? …

Do you think the word was just invented in February? Or maybe we just made up a word in case we needed it one day.

Reply to  whiten
October 4, 2020 11:15 am

October 4, 2020 at 10:06 am

ok, fair enough.
Proper point to moan there.

But you either missed this:
“Yeah, ok, you have a point… as in the gaze of this one, any prior Pandemic(s) not really real as per the concept.”
or the entire comment there.
or you fail to see or understand it, in that given context.

There never was a Pandemic as proper as this one, before it.
(many very mistakenly, get to consider epidemics and pandemics solely in main proposition of fatality…too wrong)

So undermining the pandemic expression in the case of this latest one, undermines the entire meaning of “pandemic”.

You and any one else can keep all other pandemics there, which ever way you like it,
but for as long as not messing around in the consideration of this last proper one…
which is like none before… as that will undermine the entirety of that word or concept.

You hopefully remember, the whole insane global lock down…
that was real and proper, like never ever before.

You still do remember that much, do you!


Reply to  Herbert
October 4, 2020 3:24 am

The real crisis is/was the fear-driven response. Do you consider flu a crisis? Per US data, flu is more deadly than covid to people under 50.

Reply to  icisil
October 4, 2020 6:03 am

The WHO recently said that about 750,000,000 people have had this virus. I saw on the news last night that about 1,000,000 people have “officially” died from the virus. Doing the math … 1/750 = 0.0013333333, or 0.13%. This is slightly higher than the flu. Which means that 99.87% of the people who get this virus recover. The flu kills young and old, healthy and unhealthy. This virus, with rare exceptions, only kills the old or unhealthy.

But I believe the number of deaths from this virus is overinflated. If you look carefully at the US’s CDC reports, some people who are counted as COVID-19 deaths include those with gunshot wounds, single-vehicle motorcycle crashes, terminal cancer, and heart attacks. Just to name a few. This is anecdotal hearsay and not provable, but I’ve talked to more than one nurse who said she was pressured to list COVID-19 as a cause of death when clearly it did not contribute to or cause a person’s death. I believe the numbers are cooked based on this article from the New York Times which showed China was spreading propaganda about the virus.

Reply to  Herbert
October 4, 2020 4:53 am

Coronavirus meets climate crisis.

Faux crisis meets faux crisis.

Reply to  Klem
October 4, 2020 7:18 pm

Reminds me of a piece I read recently from the leading light of climate satire – Brad Keyes:

My question is to the rather animated gentleman on the far left, psychologist I think? [Pointing to Winthrop Professor Stephan Lewandowsky.] Hi, yeah. In two bullet points or less, how does science explain the fact that nobody bothers doing anything to avert climate catastrophe?
Winthrop Prof. Lewandowsky: Whoa! [Wiping brow theatrically. General laughter.]
That’s pretty much the question, isn’t it? So while I’m not remotely convinced you were asking it in good faith, I want to answer it anyway:
The human brain evolved to ignore problems that don’t matter.
Which is great for solving the real problems we encounter day to day—but leaves us totally ill-equipped to deal with made-up ones.

Jeff Id
Reply to  Herbert
October 4, 2020 7:55 am

Neither is a crisis. We have government crisis though.

October 4, 2020 2:31 am

Because modern houses are very well sealed, heat recovery ventilation (HRV) is pretty much standard in new house construction (where I live anyway).

Compared with operating with the windows open, HRV could pay for itself within one or two heating seasons.

If you’re handy, there are plenty of DIY designs. As well, there are single room units for pretty cheap. link

Reply to  commieBob
October 4, 2020 3:26 am

There are always trade offs. A well sealed house creates unhealthier indoor air.

Michael S. Kelly
Reply to  commieBob
October 4, 2020 7:05 pm

I’d just get a germicidal lamp and install it in my HVAC intake ducts.

Neal in Texas
Reply to  commieBob
October 5, 2020 9:09 am

An interesting study from one of the last documented airborne smallpox transmissions in Europe indicates that open windows may be a serious mode of transmission:

Using a smoke generator, the pathway for infecting individuals two floors above an infected patient’s isolation unit was identified to be either a stairwell or via open windows.

If smallpox transmission through the air can migrate multiple floors from an isolated room, how much more transmission could we see through intentionally opening windows.

Reply to  Neal in Texas
October 5, 2020 12:00 pm

Wow, good catch.

October 4, 2020 2:59 am

Cases don’t tell the whole story

as at Saturday 3rd October.

Ron Long
Reply to  mwhite
October 4, 2020 3:16 am

“Cases don’t tell the whole story” is very correct for Germany. Look up the death chart to go along with the new cases chart at the start of the article and you see that this new increase in cases is not matched by an increase in deaths. It appears that the recurring comment that the coronavirus has mutated to be more infectious but less lethal is correct, and in many areas it is close to regular flu statistics. Still, best to avoid it. Remember Germany and Kalifornia are having a Stupidity Contest, and it’s still too close to call.

Steve Case
Reply to  Ron Long
October 4, 2020 4:35 am

Remember Germany and Kalifornia are having a Stupidity Contest, and it’s still too close to call.

First chuckle of the day, +10 and thanks for posting (-:

Reply to  Steve Case
October 4, 2020 6:22 am

UK seems to have entered the contest as well.

Reply to  LdB
October 4, 2020 8:43 am

And Oz and the Canucks, and even the Kiwi’s. Actually seems like the anglo 5 Eyes countries are significantly expanding Gov’t control over people. The authorities of all kinds with some having nothing to do with the pandemic have experienced a type of dictatorship over people that will be hard to roll back.

Patrick MJD
Reply to  LdB
October 4, 2020 6:07 pm

The who state of Victoria in the Aus the leader in that race.

Philip Mulholland
Reply to  Ron Long
October 4, 2020 4:46 am


This is what is called a Casedemic

Reply to  Philip Mulholland
October 4, 2020 10:20 am

The Guardian finally are posting tests, deaths and “cases”.

In March 40% of 14,000 daily tests were +ve, this week 2.5% of 270,000 tests each day are +ve.

what we have is a Test-demic.

This is a data collection exercise , not a public health measure.

Reply to  Ron Long
October 4, 2020 6:03 am

That could be, but more likely doctors have understood better how to treat effectively (blood thinners, steroids, don’t like on back, no early ventilation, low pressure ventilation, etc…).

Reply to  Ron Long
October 4, 2020 6:46 am

Still, best to avoid it.

Yep, I wonder what the President will have to say when he gets out of the hospital. link On second thought, I pretty much know what he’ll say. If he’s ever contrite about anything, I hope I’m sitting down when I find out about it.

I pray for Trump’s speedy recovery because there is no replacement for him.

Tom Abbott
Reply to  commieBob
October 4, 2020 9:57 am

Trump’s doctors said he was doing very well this morning. No fever and adequate O2 in the blood.

It looks like the medications he is taking are having a good effect. He was sick and getting sicker until he started on the medications, then he improved quite quickly. They put him on a steriod today.

Reply to  Ron Long
October 4, 2020 10:15 am

However, there may be a lag between being diagnosed with the disease and hospitalization, and there is a lag between hospitalization and death. May need to wait a week or so before being able to say anything conclusive.

Reply to  Ron Long
October 4, 2020 10:23 am

Possibly, but more realistically, IMO, treatments have gotten better, or less bad.

Reply to  mwhite
October 4, 2020 5:42 am

Virus disease, therefore, a positive PCR test a case. A case is an instance of disease manifested by symptoms. They’re trying to equate virus with disease. That’s simply not true. They did the same thing with HIV and AIDS. It was frequently called HIV disease, even though many people who tested positive for HIV never got sick.

Reply to  icisil
October 4, 2020 6:33 am

The tests aren’t specific to SARS-CoV-2 either. Fragments from other CVs and interferences cause false positives that at this point make these tests unfit for the purpose that they are currently being used.

mike macray
Reply to  icisil
October 4, 2020 7:07 am

…Virus ≠ disease, therefore, a positive PCR test ≠ a case….
Great insight icisil, thanks!
So if I’m not mistaken the virus is a sort of ‘Trojan Horse’, an ambush predator waiting for just the right moment / victim before striking.
In these Orwellian times it is hard to know what to think, leaving how to think as the only option.

Reply to  mike macray
October 4, 2020 10:19 am

Have no fear, the MSM, the politicians, the scientists and, especially, the opinion makers will tell you what to think. Note that some headlines now include a tagline “what you need to know”.

Shame on anyone who thinks independently.

Reply to  Retired_Engineer_Jim
October 4, 2020 7:28 pm

I’m OK with it, because it tells me what I don’t need to know – same as fact check, and poll says ……

They work so hard at lying that for me it’s the easiest way to figure out the actual truth.

In actual chronic parasitic disease it’s about the parasite lying to the immune system. In the parasitism we’re witnessing by these human parasites, pretty much the same thing.

Lady Scientist
Reply to  Retired_Engineer_Jim
October 4, 2020 10:12 pm

And I also steer clear of any so-called analysis article that starts or ends with “here’s why”

Steve Z.
October 4, 2020 3:36 am

10 September 2020

CDC – “Current Best Estimate” for the USA “Infection Fatality Ratio.”

Under age 20 – 3 deaths per 100,000 infections.

Age 20 to 49 – 2 deaths per 10,000 infections.

Age 50 to 69 – 5 deaths per 1,000 infections.

Age 70+ – 5.4 deaths per 100 infections.

Protect the elderly and the infirm.

Everyone else – back to your normal life.

Ron Long
Reply to  Steve Z.
October 4, 2020 5:31 am

Good comment, Steve Z. However, as an elderly (golf club champion in Super Senior catagory), but not infirm, man your comment reminded me of this: While prowling underground in an old (1906?) underground mine in Nevada I found an old whiskey bottle. Due to the dry conditions the paper label was preserved, and it included the instructions for medical use: Men Take Full Strength, Women and the Unusually Infirm Dilute Half With Water.

Reply to  Steve Z.
October 4, 2020 6:16 pm

Just out of curiosity, anybody know what the fatality rate, for 70+, for all forms of respiratory infection?

Peta of Newark
October 4, 2020 3:41 am

Lets delve into this little Can-O-Wurms, as I iz wont 2 do.
(Worms are great ain’t they?)

Starting point= 70%+ of everything we eat goes simply into keeping ourselves warm.

Thus… Is it not possible that the Green Craze for Energy Saving, draught proofing, Passivhaus, burn you alive in your tower-block cladding and even heaters in cars *MIGHT* just have something to do with the epidemic of bloated, Diabetic and Demented people there are around us all?

All of these things being indicative of Death From Covid?

(Where’s Monckton on Trump, after his blearily accurate prediction of Boris’ premature demise?)

Getting a load of sugar out of people’s blood streams might just rouse them from their Over Active Startle Response Slumbers- simultaneously getting them out of their panic responses (to trivial threats, uno wot they are) and indecisiveness – witness Boris and Brexit as a near perfect example.
Its now obvious who wears the trousers at #10 Downing St now innit – an overly cautious and easily frightened person – as all new mothers are by default.
Hooda thunk, *another* female Prime Minister, esp after all the hashes the previous female PMs have made.

Maybe also, there really are Too Many People.
Face it, does anything of Real Quality come out of China these days? So why does a cheap and crappy Chinese virus cause sooo much trouble.

‘Something’ really is rotten in this world right now and Climate Science is just one small indicator of it.

October 4, 2020 4:29 am

When these people set out to solve a problem they rarely think it through.

If only we could put them all on the B Ark. Golgafrinchan needs talents like that

Reply to  fretslider
October 4, 2020 7:35 pm

Too true. To reduce carbon dioxide levels in the atmosphere, the only thing these fraudulant faux-elitist nincompoops can think of is to tell other people what to do and it’s to reduce their emisssions. Colossal idiots. Even Greta figured them out.

October 4, 2020 4:45 am

Catch 22 – open office doors and windows cause drafts, the main cause of office flip-outs. And a major cause of chills and likely the flu.
It gets damn cold near the Alps, and ok, a room could be ventilated quickly, not continuously.
Schools likely will do a timed ventilation.
Not many offices have air-conditioning, unlike the US, and I would not trust any filter anyway.
For the Auto sector, huge assembly halls are likely well ventilated. It is probably the firm cantine where infection spreads. Or the external smoking booths.
Anyway soon expect trade union demos’ caused by the auto sector crash. In France the Gilets Jaunes have their own yellow masks now on demo. In other words the crash started well before any virus. Of course crashing firms welcome any Virus-aid handouts to buy their own shares to “save” the stock exchange.

Finance is so desperate they consider COVID a god-send, the gods being Mnuchin, Leyen, Macron, Lagarde, and that gaggle.

Reply to  bonbon
October 4, 2020 10:24 am

Are Gilets Jaunes still demonstrating? Nothing in the news about that here in the US.

Mike Thies
October 4, 2020 5:13 am

My one continual complaint regarding hotels in Germany during our mid to late September visit four years ago was the severe lack of ventilation.

While I appreciate the efficiency nearly all of the single family homes (save the truly high styled ones that I suspect are “protected”) have been covered in about 4″ of Styrofoam and synthetic stucco. The roofs receive a similar treatment where the original tile is removed very thick foam applied to the exterior and then retiled.
At the same time the windows are replaced with very high efficiency units that typically “open” by tipping out just a few inches. Then electrically operated exterior roll-up blinds are installed with these closing automatically around nightfall. A number of homes were under varying stages of this renovation in one place we stayed and I enjoyed observing during my early morning walks.

Space heating is via modulating/condensing natural gas boilers driving panel radiators equipped with TRVs (thermostatic radiator valves) sized such that the incoming water temperature should never need to exceed 140F and typically significantly less. This means the panel radiators are producing only the tiniest convective currents. Again I appreciate the efficiency and have designed similar systems myself.

Combine the above with fact that the original structure of the homes is solid masonry at least 8″ thick and you’ve essentially created a super-insulated, highly massive, virtually air-sealed space where the aroma of sauerkraut must hang for days on end;) A friend who is a submariner on a modern “boomer” tells stories about how nobody (wives/family/etc.) will come near them or let their clothing into their homes after one of the months long completely submerged voyages until everything has been washed several times.

Surely they’re using HRVs (heat recovery ventilators) and I even suspect that range hoods (whenever/if ever they are used) must be along the lines of commercial kitchen hoods in the US that use two separate fans–one to draw in fresh air and the other to exhaust room air. Even so I suspect those incredibly energy efficient homes are not comfortable homes much of the time.

While it had been used before the term “vitiated air” came into the forefront of peoples’ minds after the horrors of the Spanish Flu following WWI. Schools built in that era used 100% fresh air for heating with an extreme amount of intentionally not-too-well-sealed windows to allow the huge ductwork where air movement was purely by the “hot air rises” rule to operate properly. The fanciest homes of the day* used a similar heating method while more modest ones received boilers and cast iron radiators so oversized that the homes would virtually (if not literally) be heated comfortably with the windows open at night during the coldest weather.

*Modern buyers of homes using such a heating system (there are still some left) who don’t understand the how it works often have the home “sealed up” to reduce the enormous space heating cost. Guess what? They freeze while fuel consumption actually increases!

Reply to  Mike Thies
October 4, 2020 7:06 am

US nuclear powered submarines have laundries, charcoal air purifiers, CO2 removal machinery and other devices that keeps the air decent and CO2 inside at about 4,000 ppm. Your friends description of foul air and people may have occurred if a ship had failure(s) in some of her atmosphere control or laundry machinery but not normally. What he described is, however, typical of WWII diesel submarines.

Sweet Old Bob
Reply to  Mike Thies
October 4, 2020 8:41 am

“A friend who is a submariner on a modern “boomer” tells stories about how nobody (wives/family/etc.) will come near them or let their clothing into their homes after one of the months long completely submerged voyages until everything has been washed several times. ”

Think your friend may be pulling your leg …

or maybe Fast Attack subs “runs” often lasting longer than boomer patrols made a difference ?

Only one wash required upon our returns .

October 4, 2020 6:05 am

It’s not only Germany. As we are seeing in many jurisdictions, “new” “cases” are up but deaths are still stubbornly low.

This begs the question: What the heck changed in early August to initiate the jump in cases? My guess? There was a modification in the testing procedure to increase the test sensitivity and/or cycle threshold so as to detect even the tiniest shattered remains of the virus. Once detected, the bell rings and the healthcare bureaucrats have another “case,” regardless of symptoms. Maybe a chest CT is performed someday, but usually self-isolation is ordered (in an air-tight home) until the case resolves itself.

Just my guess.

Roger Knights
Reply to  PaulH
October 4, 2020 6:46 am

““cases” are up but deaths are still stubbornly low.”

The explanation I like, and hope is true, is that there is a large % of the population with inborn T-cell immunity to the symptoms, even after they “catch” the virus.

October 4, 2020 6:14 am

I often watch the news on NHK (Japanese TV). One of their mantras since the onset of COVID-19 has been “Ventilate, ventilate, ventilate.” They tell people to open their windows to get rid of the stale inside air. I think that is one of the main reasons we’ve been hit so hard with COVID-19. Most of our commercial buildings have windows that can’t be opened. We need to change our building codes. Another thought I’ve had on this topic. When I was young, I remember that they conducted an experiment — pumping ozone into a building’s ventilation system to kill bacteria and viruses. Unfortunately, the ozone irritated peoples lungs, nasal passages too much. (That was back in the 50s, I think).

Flight Level
October 4, 2020 6:22 am

-In reality we have absolutely no clues nor plans.
-Sounds like a fabulous plan !

-And what about our already financially challenged population that can not afford the extra heating costs?
-There’s no problem that an absence of solution can’t not resolve!

-Yes, sounds like a plan…

October 4, 2020 6:31 am

I went to a family wedding last night and met my first COVID “survivors”. Two were a man/wife in their 50’s that got it way back in February on a ski vacation to Utah. Early adopters i would say. Their symptoms were pretty strong but they made it through. The other two were twins that went off to college this fall. One felt a little out of sorts for a day or so and the other didn’t know he had it until his roommate tested positive and he was tested. Totally asymptomatic. All four have no lasting symptoms.

We all did the mask thing until going into the large sanctuary where we spaced out and removed the masks. After the ceremony we all went up for pictures and of course didn’t space out. The wedding reception was outside on a cool sparkling evening.

I’m not a fan of masks. All you have to do is observe a group of people with them on and many don’t fit or are worn incorrectly. Aerosols you breathe in or out go right through them and about the best thing the mask will do is redirect them to the side, top or bottom of your face, not eliminate them. If you are in a closed unventilated space they will hang in the air for at least minutes and you will walk through them and breathe them in.

The best way to control aerosols is dilution, which large spaces with moving air will do. Going to CostCo is a great example of this where they have high ceilings and at least in the one I go to, very good ventilation. Outside is best, especially if the wind is blowing even a little. I think if you want to reduce your exposure just consider where the air is coming from and where it is going. The old adage of “dilution is the solution to pollution” holds true for COVID as well. Opening a window in a closed space will replace the air but if you want to do it right it really needs to be constant ventilation.

Tom in Florida
Reply to  rbabcock
October 5, 2020 1:25 pm

The only masks that have any real protection are dental masks. They are designed with a water proof layer on the outside to stop aerosols and other fluids from getting to the hygienist/assistant/dentist. They come in three levels but Level 1 is sufficient for most use.
Read the label on the mask you are buying. Those inexpensive, blue, look like surgical masks are almost always “for non medical use”. They are simply dust masks that require changing every 4 hours.

October 4, 2020 6:44 am

As I understand, most home air-conditioners, whether in heating or cooling mode, do not bring in air from outside, although some air-conditioners in offices and hotels are designed to bring in at least some fresh air.

Opening windows is very sensible, not only to reduce the risk of Covid-19 infection, but also to reduce CO2 levels inside the home. Whilst CO2 levels tend to be around 420 ppm outside, and are of no health risk, the CO2 levels will often be dramatically higher inside homes with closed windows, sometimes as high as 2,000 ppm, and that can cause drowsiness and fatigue.

If a family can’t afford increased electricity costs, then it would be healthier to wear warm clothes when it’s cold, and no clothes when it’s hot, and keep the windows open.

Tom in Florida
Reply to  Vincent
October 5, 2020 1:14 pm

You simply have to buy the appropriate level of air filter that is rated for virus filtration. El cheapos won’t do.

October 4, 2020 7:07 am

‘or abandon expensive renewable energy and climate policies which encourage recirculation of virus contaminated indoor air.’

This is just nonsense… the air would be in the same state and the windows would still be open with 100% fossil fuel.

Reply to  griff
October 4, 2020 9:08 am

Wrong again, griff. The point is, for the hard-of-thinking, that Germany’s phony Green energy policy has caused their energy costs to skyrocket. Germans pay 3 times more for electricity than Americans. The high cost of electricity causes Germans to seal up their houses resulting in unhealthy indoor air. Why is German electricity so expensive? The Germans tried to replace nuclear and other reliable electricity sources with wind and solar (at an astronomical cost). It didn’t work to provide sufficient power in the winter. So they had to build dozens of lignite burning plants. Lignite is dirty coal. During some months, they get more power from lignite burning than from wind and solar combined. The Germans are paying for wind and solar AND lignite. All to eliminate clean nuclear. But the cost is high and the impact to the environment horrific.

Flight Level
Reply to  Meab
October 4, 2020 3:08 pm

Right. Known as “sick home” syndrome.

October 4, 2020 7:09 am

And one more thing… German covid deaths are just over 9,500. That’s equivalent to the USA having had only 38,000 dead, not 205,000 and rising.

Tom in Florida
Reply to  griff
October 4, 2020 7:26 am

Germany doesn’t have arrogant liberal New Yorkers.

mike macray
Reply to  griff
October 4, 2020 10:16 am

..And one more thing… German covid deaths are just over 9,500. That’s equivalent to the USA having had only 38,000 dead, not 205,000 and rising…
How do those numbers look without New York and New Jersey? Parroting propaganda is no substitute for intelligent thought.
Oh! And while we’re at it, what is the normal annual attrition (death) rate in a population of 330 million with a life expectancy of 78 years? Hint: divide the big number by the little number!
Answer: 4.2 million, Over ten times the reported Covid-19 attributed deaths over the same period.
Just trying to add a little perspective to the propaganda.

Pat from kerbob
Reply to  griff
October 4, 2020 10:57 am

Well, I don’t think Germany counts murder, vehicle accidents, heart attacks etc etc as covid deaths the way the USA does.

Covid attacks the weak, those with many comorbidities, the USA leads the world in obesity, diabetes and a host of other issues related to diet.

And the diet catastrophe has been caused by “consensus settled science” that fat is bad, carbs good.

So science is killing Americans
Good consensus science

alan w voth
October 4, 2020 7:44 am

Air to air heat exchanger, aka heat recovery ventilator. Not the tiny over priced crossflow nonsense sold by the building industry currently. It needs to be counter flow and at least half the size of a refrigerator. They can be 90% efficient, the design is simple. They should be relatively cheap to manufacture. For retrofit, a smaller unit installed like a window AC would easily do for a small apartment. It is not rocket science.

Bruce Cobb
October 4, 2020 7:51 am

I guess it would be wrong to say

So I won’t.

October 4, 2020 8:31 am

You want to be a popular State Premier with a windfall bucket of money so what do you do?
Subsidise largely fossil fuel power bills you jacked up in the first place with costly unreliables-

Pat from kerbob
October 4, 2020 9:14 am

The USA stats on corona deaths are hopelessly corrupted based on everything I have read.
But if they are elevated over the rest of the western world I think look no further that the initial health of the people, the diabetes, obesity and heart disease levels in the usa are off the chart.

And this continues to bear repeating, that health pandemic is entirely human created and is all about the first “settled science consensus “ that fat is bad, carbs are good.

Fix the diet fix covid

Reply to  Pat from kerbob
October 4, 2020 11:37 am

Well stated.

Reply to  Pat from kerbob
October 4, 2020 7:11 pm

And, what is the relative status of Vitamin D deficiency between the 2 populations. I would also imagine that relative number of black people in urban US is higher than Germany, with the acknowledged higher prevalence of Vit D deficiency.

I was taught that the best chance of gaining a statistically meaningful result from a study, was to stratify your sample population by known characteristics. Admittedly we were looking at trees, but I imagine the principle holds.

Christopher Chantrill
October 4, 2020 12:39 pm

But, the Germans could also put supercalifragilisticsexpialidocious heat-exchanger fans in the window. How hard could this be for the people that invented relativity and quantum mechanics?

I believe that 97% of German climate scientists agree on this.

Stephen Skinner
October 4, 2020 3:27 pm

“Angela Merkel says ventilation may be one of cheapest and most effective ways of containing virus”
And what about the immune system which has been in development for a few million years and is free? Or is the fact it’s free and natural a problem?

October 4, 2020 10:36 pm

Meta study about infection fatality rate:

IFR is already 0.4% for people at age 55, 1.3% for people at age 65. This virus is way deadlier than the flu which was actually only 0.05% for the 2018/2019 season.

The average IFR for the US is ~0.8% and probably somewhat higher for Italy, Spain and also Germany as the population is older and the personal IFR is highly correlative with age (Fig. 3).

Jaye Bass
Reply to  Ron
October 6, 2020 4:46 pm

At this point, it doesn’t matter. It’s mostly over.

October 5, 2020 1:00 am

Exchanging the air in room may even save energy: You open the window fully for a few minutes, letting out moist air and getting in dry air wich can collect more moisture. Air has a very low energy storage. If you do a full air exchange in short time, nearly zero of the energy in the walls, floors an ceilings will escape.

If you leave the moist air in the room, the moisture will penetrate into the walls and will make them a heat conductor, and cause them to transport the heat outside.

People who not know about proper airing a well insulated house talk about it like dogs about laying eggs.

October 5, 2020 12:42 pm

More heat on Merkel, From the man who beat VW and Deutsche bank-

“Lawsuits in the United States and in Europe are being filed against the large corporate perpetrators of the coronavirus fake pandemic. International lawyer Dr. Reiner Fuellmich, with a successful track record against the likes of Deutsche Bank and VW Audi, has posted a new Youtube video announcing the new legal actions.

“I have been practicing law against fraudulent corporations for over 26 years. We must ensure that, on a political level, never again should anyone be allowed to be in a position to defraud humanity and attempt to manipulate us with their corrupt agendas,” said Dr Fuellmich’

Jaye Bass
October 6, 2020 4:20 pm

Why are they worried about the cases when the deaths are practically nil? Turns out the US gov kept testing for two years after H1N1 burnt itself out. Huge numbers of cases in 09 and 10 but super low death rates so they just quit testing. With PCR testing you could go on for years propping up a casedemic.

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