I couldn't stop thinking of zombies while reading this.
In Dying Light, ultraviolet light wards off the zombies.
If we assume that a) the imminent singularity/zombie apocalypse of modern reality will be preceded by infectious airborne viruses, and b) this new UV light has protective/cleansing effects that "reduce the level of indoor airborne microbes by more than 98%", c) that "that far-UVC light can kill the COVID virus, other human coronaviruses, influenza, and drug-resistant bacteria", then hey presto: we've got a potential counter-weapon that can be modified to work against the zombie apocalypse.