Thread by @VentiloAngel

UV disinfection settings, pictures from study ….

Far-UVC: Technology Update with an Untapped Potential to Mitigate Airborne Infectionshttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC10704226/

A single, upper-room GUV fixture delivered the equivalent of 18–110 eACH, depending on the susceptibility of the test microbe and relative humidity ,whereas a single far-UVC fixture delivered 33–66 eACH

Far-UVC can be applied across a broader range of indoor settings and closer to breathing zones, making them potentially useful in public transportation and other settings while offering better protection from infectious transmission from nearby room occupants

Effective, energy-efficient air disinfection is a critical public health need. The three available technologies—ventilation, filtration, and GUV—vary greatly in their practical capacity to interrupt the airborne transmission of pathogens.

entilation and filtration improve air quality and offer some protection against infection but, in many scenarios, may not produce sufficient levels of equivalent ventilation to reduce transmission

GUV (whether upper room 254 nm or far-UVC 222 nm) provides the high eACH range needed to address airborne pathogens that are shed at high quanta emission rates (e.g., 5,000 quanta per hour for measles or 1,000 quanta per hour for SARS-CoV-2) (9).

Although well-functioning heating, ventilation, and air conditioning systems are essential, GUV provides enhanced protection at a sustainable cost