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2. Ultraviolet germicidal irradiation - Wikipedia

   en.wikipedia.org/wiki/Ultraviolet_germicidal...

   UV treatment is rapid and, in terms of primary energy use, approximately 20,000 times more efficient than boiling. [citation needed] UV disinfection is most effective for treating high-clarity, purified reverse osmosis distilled water. Suspended particles are a problem because microorganisms buried within particles are shielded from the UV ...

3. Can UV light wands actually disinfect your Airbnb? An expert ...

   www.aol.com/uv-light-wands-actually-disinfect...

   UV radiation, or ultraviolet radiation, comes from the sun. UVA, UVB, and UVC represent UV radiations of different wavelengths. Can UV light wands actually disinfect your Airbnb?

4. This wand uses UV light to kill 99.9 percent of germs — and ...

   www.aol.com/lifestyle/wand-uses-uv-light-kill...

   Clean your masks, phone, keys and more with the power of UV light. This wand uses UV light to kill 99.9 percent of germs — and it's just $3 at Amazon Skip to main content

5. Germicidal lamp - Wikipedia

   en.wikipedia.org/wiki/Germicidal_lamp

   A germicidal lamp (also known as disinfection lamp or sterilizer lamp) is an electric light that produces ultraviolet C (UVC) light. This short-wave ultraviolet light disrupts DNA base pairing , causing formation of pyrimidine dimers , and leads to the inactivation of bacteria , viruses , and protozoans .

6. Disinfectant - Wikipedia

   en.wikipedia.org/wiki/Disinfectant

   Ultraviolet light is also used for municipal water treatment. Ultraviolet light fixtures are often present in microbiology labs, and are activated only when there are no occupants in a room (e.g., at night). [citation needed] Heat treatment can be used for disinfection and sterilization. [42]

7. Portable water purification - Wikipedia

   en.wikipedia.org/wiki/Portable_water_purification

   UV-treated water must therefore not be exposed to visible light for any significant period of time after UV treatment, before consumption, to avoid ingesting reactivated and dangerous microbes. Recent developments in semiconductor technology allows for the development of UV-C Light Emitting Diodes (LEDs). UV-C LED systems address disadvantages ...