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Why use UV-C light?

PathogensUltraviolet (UV) light is a component of the electromagnetic spectrum that falls in the region between visible light and X-Rays.

Most natural UV light is generated by the sun with about ten percent of sunlight being UV and only about three to four percent penetrating the atmosphere to reach the ground. Of the UV radiation that reaches the earth, 95 percent is UVA and five percent is UVB.

No measurable UV-C from the sun reaches the earth’s surface. Because of the spectral sensitivity of DNA, only the UV-C region demonstrates significant germicidal properties.

 

The Electromagnetic Spectrum

 

Notes

History of UV-C

Niels Ryberg Finsen

 
CellectaMade in Great BritainThe LIADorset Chamber
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