Originally Posted by
EqualOpp
.Look up a product -- STERIPEN to see how it works in a consumer product.
Other FTers have already refuted other aspects of your post, but I hope to be able to indicate to you why what you're saying isn't right.
The SteriPen works by emitting UV light with wavelength of approx 254 nanometers:
http://www.steripen.com/stuff/conten...20lvolumes.pdf
This is in the UVC spectrum of UV light.
http://www.skincancer.org/prevention...olet-radiation
"UVC is the shortest and highest energy UV with wavelengths less than 290 nm. However, since it is filtered by the ozone, these wavelengths do not reach the earth's surface..."
UVC's germicidal activity is derived from its ability to damage DNA. It is for this reason that Steripen recommends that you not expose your skin or eyes to its UVC light:
http://www.steripen.com/stuff/conten...er_english.pdf
Originally Posted by EqualOpp
UV light is blocked by windows as well
UVB light is typically blocked by windows, whereas windows typically transmit UVA light:
http://www.ncbi.nlm.nih.gov/pubmed/1477415