Study finds gaps in evidence for air-cleaning technologies to prevent infections

Fair argument, but let’s not forget that indoor air quality, HEPA filters, and upper air UV systems weren’t even allowed to be discussed as solutions to airborne transmission of viruses not that long ago. It was all about masks/no masks, remember? It’s a little unfair to say that things haven’t been studied, when it would have been career damaging to do so until very recently.

Who in the world is installing UV in forced air systems without running an activated carbon filter to remove ozone? The guides I followed when I installed mine called this out multiple times.

All the tech in the world won't change anything if people don't focus on airflow and airchanges. Air needs to move and be replenished with air from the outside. Filters/UV/etc are just a bonus.

UV-C / hydroxyl generators or bust

There's no gaps, it was never actually a workable idea, same as masks and the totally made up 6' social distancing. But companies jumped at the opportunity to make crazy money off of mass hysteria. It was all a case study in failed ethics and madness of crowds.