A little more support for my ventilation system upgrade idea
Build downdraft paint booths for K-12 schools? (July 2020, here on this blog):
The technology for downdraft paint booths is highly advanced … Why not a system for schools in which (a) each classroom has its own HVAC system, (b) there are 8-12 outlets in the ceiling, and (c) there are 8-12 exhaust outlets in the floor? For maximum safety, the system would have no recirculation.
More than a year later, in Atlantic, “The Plan to Stop Every Respiratory Virus at Once” (9/7/2021):
The original dogma, you might remember, was that the novel coronavirus spread like the flu, through droplets that quickly fell out of the air.
A virus that lingers in the air is an uncomfortable and inconvenient revelation. Scientists who had pushed the WHO to recognize airborne transmission of COVID-19 last year told me they were baffled by the resistance they encountered, but they could see why their ideas were unwelcome. In those early days when masks were scarce, admitting that a virus was airborne meant admitting that our antivirus measures were not very effective. “We want to feel we’re in control. If something is transmitted through your contaminated hands touching your face, you control that,” Noakes said. “But if something’s transmitted through breathing the same air, that is very, very hard for an individual to manage.”
The WHO took until July 2020 to acknowledge that the coronavirus could spread through aerosols in the air. Even now, Morawska says, many public-health guidelines are stuck in a pre-airborne world. Where she lives in Australia, people are wearing face masks to walk down the street and then taking them off as soon as they sit down at restaurants, which are operating at full capacity. It’s like some kind of medieval ritual, she says, with no regard for how the virus actually spreads. In the restaurants, “there’s no ventilation,” she adds, which she knows because she’s the type of scientist who takes an air-quality meter to the restaurant.
(See “Australia has almost eliminated the coronavirus — by putting faith in science” (Washington Post, 11/5/2020)_
I guess Professor Morawska wouldn’t like the simplest science-based way to get schools back to normal operations:
(some responses to the above:
- “If they hold classes in a Walmart then schools can stay open”
- “The hardest part of 14 days to flatten the curve is the first 18 months.”
- “Possibly have the teacher come to their table to collect homework , so they can ask “menu ” questions….”
; Why is Kimberly’s idea “science-based”? The orders from governors that have reshaped U.S. society are purportedly science-based, including orders that restaurants can reopen at up to full capacity so long as masks are worn between the front door and the table. Therefore, by transitivity, Kimberly’s proposal for schools is equally science-based.)
If we have $trillions to spend fighting COVID-19, which we apparently do (though it is unclear why we wouldn’t instead spend the money on CO2 vacuums to deal with what our leading intellectual has called a “code red” threat to all of humanity from climate change), why wouldn’t we invest in ventilation?
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