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The frequency band used in UVGi-Fi is light of a much higher EMR frequency than that of microwave radiofrequency (RF) communications. RF radiation in the microwave spectrum presents potential adverse health effects. However, IoT wireless communications using solar-blind Far-UV light cannot penetrate human cells. Also, far-UV communications don’t suffer the shortcomings of traditional electromagnetic interference (EMI) and signal interception technology. New germicidal wireless communications guarantees an RF safe and confidential interference-free communication environment from solid-state Far-UVC communications technology such as UVGi-Fi. Far UV Innovations presents some novel solutions in scenarios where Far UV-C can be a viable alternative to conventional communication.
When you hear claims that Far UV is harmless to people, while this is true for human exposure up to thresholds, time to limits values is still a thing.
No different than SAR levels when using the RF spectrum for communications. SAR indicates a safe level of radiation exposure from your smartphone.
The light-based communications industry using germicidal light frequencies will also have regulatory guidance for Time to Limit Values.
It is safe to assume new time limit values will be established as research fine-tunes the safest possible frequency window for UVGi-Fi and Far UV lighting. However, far UV irradiation must never exceed regulatory guidelines for UVC exposure regarding eye and skin safety. Regulatory agencies have no distinction between FAR UVC and UVC when considering human exposure as this “safe” window is a recent discovery.
Far UV is effective for inactivating viruses and transmitting wireless data while remaining below these thresholds. The thresholds still exist. What we can do within them has changed.
Far UVC is safe in occupied public spaces, up to the allowable threshold limit value of 25 mJ/cm2 at 220nm, ACGIH 2021, or perhaps beyond these limits as more recent research is taken into account human safety while disinfecting contaminated air and surfaces to limit the presence and transmission of viruses using Far-UV light.
2021 Threshold Limit Values (TLVs) and Biological Exposure Indices (BEIs) The American Conference of Governmental Industrial Hygienists (ACGIH)
As for ozone production, Far-UV solid-state has a considerable advantage over KrCl lamps at the same wavelength peak. Newer Far-UV lights have reduced ozone using conductive printing on the tube to minimize arching, while any wavelength shorter than 240nm will affect the atmosphere. In addition, sealing in the semiconductor limits ozone leakage into an environment.
Nano-LEDs can easily regulate the power to maximize data transmission while reducing virus transmission incorporating the lowest ozone production, which has its own set of thresholds imposed by government guidelines.
So it is safe to say Far UV effectively inactivates viruses and transmits wireless data while remaining below ALL human safety exposure thresholds. Therefore, Far-UV TLVs should get reexamined the same way as current SAR level guidelines are scheduled for reevaluation by the FCC by court order!