Given that the articled discusses 222 nm light being harmless to humans, and acknowledging that 254 nm is known to be dangerous, I am concerned that wide/univer

Given that the articled discusses 222 nm light being harmless to humans, and acknowledging that 254 nm is known to be dangerous, I am concerned that wide/universal deployment of such systems might lead to situations where poorly constructed or serviced equipment might emit dangerous wavelengths.