[pyk]

If you have forced air, you can get a UV bulb that all air passes by for $200-300 - just requires drilling some holes and an AC plug. Also helps with killing mold and bacteria as an added benefit (and some of the original intention for the devices, e.g., OdorStop).

[nradov]

Are there any independent test results to show how effective those UV bulbs are at killing pathogens?

[schoen]

I would particularly want guidance about

* what UV frequencies to use

* what intensity of light to use

* what volume of air can flow past it per second

I totally believe that UV light is great at killing pathogens and that UV belongs in ventilation systems, but we presumably need to know how much UV light is needed.

The UV doses needed also seem to depend on a lot on the type of pathogen. For example, viruses require a higher dose than bacteria. In

https://www.sciencedirect.com/science/article/pii/S019665531...

it required up to 6 times as much UV to inactivate viruses compared to bacteria.