Based on more than 500 hours of research, the institute Just Facts already identified the same technology in September 2021 and promoted it to scholars, public officials, journalists, and commentators. However, most of them deliberately ignored the research while Big Tech even suppressed it, thus costing countless lives.

UV air technology

The technology, called ultraviolet air disinfection, has been proven to stop the spread of contagious respiratory diseases in settings like schools and hospitals for more than 80 years. It is so effective that when it was used in a wing of a California VA hospital during the Asian influenza epidemic of 1958—not a single patient caught the disease. In contrast, the epidemic struck the other wing of the same hospital "with explosive force," producing a "severe, prostrating illness" among 19% of the patients.

The professors who wrote the Times essay were well-qualified to analyze this issue, as they specialize in "environmental health and how to prevent the airborne transmission of diseases like Covid." They include:

• Donald K. Milton, a professor of environmental and occupational health at the University of Maryland School of Public Health.
• Edward A. Nardell, a professor of medicine at Harvard Medical School.
• David Michaels, a professor of environmental and occupational health at George Washington University, and a former OSHA official.

The scholars emphasize that ultraviolet air disinfection "can end large superspreader events and make public events and dining safer for everyone" and then finish their essay by asking, "What are we waiting for?"

The answer to that rhetorical question is appalling and contains broad lessons that can prevent an enormous amount of harm from COVID-19 and other scourges going forward.

How it works

Ultraviolet (UV) light is an invisible part of the energy spectrum emitted by the sun, and it can also be generated by lamps. Multiple studies have found that it proficiently kills airborne microbes, thus preventing the spread of contagious respiratory diseases. These lamps can be deployed in several ways, each with pros and cons.

The most successful studies of UV disinfection systems have been conducted with "upper room" UV. This involves installing UV lamps above people's heads so that the UV light can't enter their eyes.

Although invisible, the type of UV used for such systems can cause eye pain after hours of direct exposure, which doesn't occur if the light stays above their heads. When used with fans to increase circulation, upper room UV systems can disinfect the air in a room at very high rates of 57 to 100 times per hour.

Moreover, the professors assert there are "newer, commercially available" UV systems which "do not irritate the eyes" and "can be used safely at lower areas of a room and can directly disinfect the air between people sitting at a dinner table." However, they don't document this claim.

Another option is "in-duct" devices that use UV to disinfect air as it passes through heating, ventilation, and air conditioning (HVAC) systems. Lab and field studies have repeatedly found that these systems kill the vast bulk of airborne microbes that flow through them, but their air turnover rates are typically much lower than upper room UV systems. For example, the HVAC air turnover rates in the Washington State Convention Center range from 5.9 to 20.1times per hour, which is 65% to 94% lower than upper room UV.

With regard to costs, adding in-duct UV to buildings that already have HVAC systems is much less expensive to install and operate than upper room UV. On the other hand, upper room systems are more economical than installing a complete HVAC system.

Likewise, the professors write that "the initial costs for equipment and installation of a highly effective" new direct UV system "can often be cheaper than upgrading or replacing ventilation systems." They also say that these systems use "far less electricity than ventilation and filtration."

Some studies have failed to find benefits from upper room UV, but as explained in a 2010 paper in the journal Public Health Reports, they were conducted in situations where there was "a high risk of acquiring the same infection outside the location where" the UV was deployed, such as school buses. This is not an issue for places like hospitals and nursing homes, where UV lights can be installed wherever the patients and residents may be.

The bottom line is that well-designed UV systems are incredibly effective at stopping the spread of COVID-19 because they kill SARS-CoV-2 virions instead of merely trying to block them.

Why governments missed it for so long

During the first year of the COVID-19 era, the World Health Organization, the CDC, and numerous public health officials declared that COVID is mainly spread by large respiratory droplets generated by talking, coughing, and sneezing.

For a prime example, the World Health Organization published a "fact check" in March 2020 declaring without evidence that "Covid-19 is NOT airborne" and "is mainly transmitted through droplets" that "are too heavy to hang in the air."

If the WHO were correct, upper room and in-duct UV systems would be useless because the droplets would never enter the spaces where the UV light is located. Even direct UV systems would be ineffective because it only takes a second or two for a droplet to travel through the air from one person to another, leaving little time for the UV to penetrate the saliva and kill the virions in it.

In reality, however, at least 20 studies and analyses in science journals have shown that COVID-19 and other contagious respiratory diseases are mainly spread by microscopic respiratory vapors called "airborne particles" or "aerosols."

Like droplets, aerosols are generated by talking, coughing, and sneezing—but unlike droplets—they are also generated by simple breathing and are small and light enough to stay airborne for minutes to hours. Thus, they easily penetrate or circumvent most masks, spittle barriers, and other measures claimed to block the spread of the virus.

UV air disinfection, on the other hand, is ideal for killing aerosols precisely because they are airborne. Hence, they are drawn into HVAC systems and circulate into the kill zones of upper room UV systems... Subscribe for free to Breaking Christian News here

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