Clean air is the 21st century’s clean water.
We already have the tools.
Time to use them.

bit.ly/4mnzv4A (10/10)

How should society implement far-UV?
-Pilot in clinics, classrooms, and transit hubs.

--Collect impact data.

Support procurement, installation, and education for potential adopters. (9/10)

Measuring real-world infection reductions is tough:

-Requires large, expensive trials.

-Hard to isolate variables.

But lab studies are clear: far-UVC works. (8/10)

The main tech currently in use is krypton chloride excimer lamps. Prices are falling, but still high. Awareness is also low. Most schools, clinics, and transit systems haven’t heard of them. (7/10)

But this isn’t either/or.

-Ventilation & filters tackle dust, smoke, CO₂—but only when air passes through them.

-They’re noisy + energy-hungry.

-Far-UVC works continuously in the room.

They complement each other. (6/10)

Effectiveness depends on the dose. Modern studies show far-UVC can slash airborne virus levels and often outperform typical HVAC systems. (5/10)

Today, we know that far-UVC light, particularly at 222 nm, destroys viruses & bacteria in the air but can't penetrate skin or eyes; a far safer profile. (4/10)

This isn't a new idea. In the 1930s–40s, hospitals & schools used germicidal UV (254 nm). It cut infections dramatically.

But eye/skin irritation and the rise of the "antibiotic era" made air hygiene feel less urgent. (3/10)

The impact can be revelatory. Tuberculosis still kills 1M+ people each year. COVID-19 showed how fast airborne pathogens spread indoors.

Cleaner air=fewer infections. (2/10)