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There’s money to be made in spectrometers conforming proper spectrum of a given device. The market will be flooded by cheap lights, and most of them will be cutting every bit of cost to turn profit.

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222 nm UVC LEDs are cheap enough. Cost cutting is in number of them, power, cooling and looks of the lamp.

> 222 nm UVC LEDs are cheap enough

To my knowledge they don't exist yet. Do you know of any manufacturer that produces them?

It does not have to be 222nm UVC, actually the most common ones available in the market, 254nm, can also kill the virus. However, the researchers claim that the 222nm is safer. This article is a bit sensational.

https://sites.google.com/view/far-uvccoronavirus/home https://medi-immune.com/protectivair/

https://medi-immune.com/protectivair/ from April

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