https://www.jefftk.com/p/you-can-just-buy-far-uvc

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You Can Just Buy Far-UVC December 13th, 2025
                             airquality, uvc

Far-UVC is something people have talked about for years in a "that
would be great, if you could buy it" sort of way. Coming soon, once
someone actually makes a good product. But the future is now, and it
costs $500.

Many diseases spread through the air, which is inconvenient for us as
creatures that breathe air. You can go outside, where the air is too
dilute to spread things well, but it's cold out there, and sometimes
wet. You can run an air purifier, but cleaning lots of air without
lots of noise is still the world of DIY projects. Ideally you could
just shine some light, perhaps in the 222-nm range, which would leave
people alone but kill the viruses [1] and bacteria. Yes, let's do
that!

Last year if you asked "if far-UV is so great, why isn't it
everywhere?" one of your answers would be:

    There are very few providers, and hardly any of them sell an
    off-the-shelf product. You usually can't just buy a lamp to try
    it out--you have to call the company, get a consultation, and
    often have someone from the company come install the lamp. It's a
    lot of overhead for an expensive product that most people have
    never heard of.

This has changed! You can buy an Aerolamp for $500, shipped. Proudly
displayed at Thanksgiving:

[far-uvc-at-thanksgiving]

Here are [S:five:S] four silently cleaning a whole lot of air at a
dance I help organize:

[far-uvc-at-bida]

At $500 this is out of (my) Christmas gift range, but I think we're
now at the point where dances, churches, offices, rationalist group
houses, schools, etc. should consider them.

(I have no stake in Aerolamp and they're not paying me, I'm just very
excited about their product.)


[1] Ok, yes, I know viruses "can't be killed" because they're "not
alive", but far-UVC causes them to become unable to infect and
replicate which is close enough to "killed" for me.

 
-
Fanning Radiators Permanently Padding a Suitcase
-

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