I want to start off with what I considered the garage award winning engineer solution to reduce viral load which balances cost, availability, and effectiveness – https://www.texairfilters.com/a-variation-on-the-box-fan-with-merv-13-filter-air-cleaner/

“Airflow from the fan was 580 feet per minute”

We can probably boost the effectiveness by having the filters made with materials that deactivate the virus – https://www.ascendmaterials.com/innovations/acteev-technology/acteev-protect-antimicrobial-technology

which I surmise will increase the cost by no more than $30.

Air cleaning is picking up steam – now you see articles discussing efficacy – https://fortune.com/2020/08/22/air-purifier-protect-from-covid-19-coronavirus/ – and noted the EPA has a statement on Covid and air cleaners – https://www.epa.gov/coronavirus/air-cleaners-hvac-filters-and-coronavirus-covid-19

“When used properly, air cleaners and HVAC filters can help reduce airborne contaminants including viruses in a building or small space. By itself, air cleaning or filtration is not enough to protect people from exposure to the virus that causes COVID-19. When used along with other best practices recommended by CDC and others, filtration can be part of a plan to protect people indoors”

Its all about reducing viral load not going to zero – as going to zero is being a hermit and outweighing life for living (think on that). At the same time we should be cautious about living in such a clean environment as this could be what caused us to be so fragile to covid. The immune system is best developed when young. My hope is the kids of covid will not be so fragile decades from now due to our ultraclean living currently.

One air cleaning technology I came across and drew my attention was Thermodynamic TSS Technology from airfree – https://www.airfree.com/en-US/Technology – Basically a heat exchanger at high temp creating convection which when the air passes the virus/germs get heated up to 400F – outcome decomposed microscopic ash – the concern would be volume flow rate within area seems low since no fan – However they do have papers to read – my favorite would be the following https://www.airfree.com/Files/Billeder/AirFree/Testes/Soto%20et%20al%20scientific%20article%20.pdf

Probably one of the worst conditions is a pig farm and obviously if the baby pigs are dying the farmers are losing potential revenue. They created a control group and group with the filter technology and results showed a reduction in mortality, diarrhea, and increase weight gain.

I went ahead and bought one for my son in college given living with other people for use in his room. Interesting to note they say the heat generated in the room is equivalent to a 155lb person being in the room – based on their wattage they assume a person to generate around 1kW in 24 hour period.

Unfortunately I have been agreeing with the following assessment – https://www.theguardian.com/world/2020/aug/22/covid-19-around-forever-former-uk-chief-scientific-adviser-mark-walport-vaccine

“Coronavirus will be around “for ever” and people are likely to need regular vaccinations against it, a former chief scientific adviser to the UK government has said.

Prof Mark Walport, a member of the Scientific Advisory Group for Emergencies (Sage), likened the virus to influenza, as he said repeat inoculations on a global scale would almost certainly be required to control it.

He told BBC Radio 4’s Today programme coronavirus was not “going to be a disease like smallpox which could be eradicated by vaccination”.

“This is a virus that is going to be with us for ever in some form or another and almost certainly will require repeated vaccinations,” he said. “So, a bit like flu, people will need revaccination at regular intervals.””

With that logic its best we focus on our lifestyle – to create and build a strong immunity – reduce comorbidities – investing in society health will pay off significantly in many ways. Each and everyone of us can contribute and be personally responsible for making healthy decisions from diet to exercise.

Eat local and fresh – https://www.thehindubusinessline.com/news/science/covid-19-infected-frozen-food-can-cause-virus-outbreaks-report/article32421192.ece

“According to a new study, Covid-19 infected frozen food can cause the outbreaks as the virus doesn’t get killed in freezing temperatures, Telegraph UK reported.

The researchers induced the virus in pieces of salmon, chicken, and pork. The infected meat was then stored in cool temperatures. The researchers also kept the food in the storage condition which is used during the supply of frozen food to different countries – between 4C, which is standard refrigeration temperature, and minus 20C, which is standard freezing temperature.”

Weekend reporting are much better – ignorance is bliss – US death fall below 1K – 983

CA leads the way at 185

San Bernardino leads the way at 62

Big 4 counties continue to improve – Maricopa AZ now over 10% of population has confirmed covid – once again so if you are out and about in either LA or Maricopa and you see 10 people 1 of them currently has or had covid.

As noted in the frozen food article – it is extremely hard to stay at 0 confirmations unless you totally isolate and this includes trade.