Ultraviolet light kills cold and flu viruses, and generates Vitamin D in the skin
| Source | ||
| Sun or UVB augmented lighting | Vit D | Kill virus* |
| UVC air cleaner | - - - - | Kill virus* |
UVC from the sun does not reach the surface of the earth
UVB from the sun, etc, kills viruses, but not as well as UVC
* Killing virus ==> reduce infecting self & others
- The effect of ultraviolet light upon absenteeism from upper respiratory infections in New Haven schools. 1951 PMID: 14847002
- USE OF ULTRAVIOLET RADIATION IN REDUCTION OF RESPIRATORY CROSS INFECTIONS JAMA 1943 doi:10.1001/jama.1943.02840120010003
- Using Ultraviolet Germicidal Lights for Air Cleaning
- "In a study within three office buildings, UVGI systems were turned on and off multiple times while not informing occupants. Work related self-reported acute health symptoms were assessed using questionnaires. There were statistically significant 20% to 40% decreases in symptoms during periods of UVGI system operation."
UV-C reduces pediatric viral respiratory illness by 44% reporting on 📄 2018 study
UV LIGHT: A NEW TOOL FOR DISEASE PREVENTION Princeton Public Health Review of 3 studies - 2018
The effect of ultraviolet-C technology on viral infection incidence in a pediatric long-term care facility| June 2018
Are Your Air Ducts a Cold and Flu Risk? How to Fight Back! Air duct cleaning, Ultraviolet air purifiers , HEPA air filters
Many UVC air purifiers for homes, hospitals, offices


Natural UV from the sun also helps: more Vitamin D and kill viruses
- Exposure to solar ultraviolet radiation and respiratory tract symptoms in 1-year-old children - 2004 DOI: 10.1111/j.1600-0781.2004.00110.x
- 📄 Download the PDF from Sci-Hub via VitaminDWiki
- Children getting more UVB from the sun had fewer coughs, runny noses
See also VitaminDWiki
UVB added in classroom reduced cavities, increased height, increased academics. etc
Vitamin D from low cost UVB lamps
- Adding a few of these lamps to existing classroom or office lighting might do the job for < $500.
Top UK soccer coach installed vitamin D booths in his club – Dec 2012
How you can greatly cut your chance of getting the flu (vitamin D just twice a month)
Items in both categories Virus and UV are listed here:
{category}
All of the studies in Breathing and Virus are listed here:
{category}