A new scientific paper makes an intuitive finding: using air filtration and UV sterilisation on air probably reduces the transmission of COVID-19, and has the incidental benefit of probably reducing the transmission of other stuff in the air too:

Airborne SARS-CoV-2 was detected in the ward on all five days before activation of air/UV filtration, but on none of the five days when the air/UV filter was operational; SARS-CoV-2 was again detected on four out of five days when the filter was off. Airborne SARS-CoV-2 was infrequently detected in the ICU. Filtration significantly reduced the burden of other microbial bioaerosols in both the ward (48 pathogens detected before filtration, two after, p=0.05) and the ICU (45 pathogens detected before filtration, five after p=0.05).

The removal of airborne SARS-CoV-2 and other microbial bioaerosols by air filtration on COVID-19 surge units

Seems like this is something that our public buildings should look to do where possible.

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Michael Josem is a long-term consumer advocate, most prominently as a global leader in combating fraud in the online gambling industry. He was in part the inspiration for the 20th Century Fox Movie, Runner Runner, starring Ben Affleck and Justin Timberlake.

Josem has over a decade of experience as a senior business leader working across various high-tech and online industries, and takes action to build a better community. His primary volunteer roles include service for the Commonwealth War Graves Commission, and Graih, the homelessness charity.