Is UV-C safe on human skin
There are two ranges of UV-C, namely 280nm - 310nm and 207nm - 222nm (Far) UV-C. 280nm - 310nm is not safe for mammalian skin, however 207nm - 222nm (Far) UV-C has been tested and proven to be safe on mammalian skin.
According to various reseach, including Kobe and Columbia University, Far UV-C has a very short wavelength and cannot reach or damage living human cells, however these wavelengths can still penetrate and kill very small viruses and bacteria.
Are there any after affects from using UV-C
Using Far UV-C, there are no known after affects.
Mice, which had the 280nm UV-C tested on them, developed skin cancer and displayed adverse effects such as cataracts and cornea damage.
Mice exposed to 222nm (Far) UV-C developed no symptoms. They did not develop skin cancer and, even after examining their eyes under a microscope, no abnormalities were found.
This is just one of many tests carried out to evaluate and establish the safety of 222nm (Far) UV-C on humans.
Which harmful pathogens does it kill?
Although we cannot list all the viruses, bacteria, fungi and parasites that UV-C light kills, it has been proven to inactivate the H1N1 influenza virus, SARS, other viruses, as well as various forms of bacteria and fungus.
What cautions should you undertake
When using 280nm - 310nm UV-C, it is important that you never expose mammalian skin to the rays. It is best to use these devices in controlled environments. When using the wand, ensure you are pointing it away from your body and only towards inanimate objects. It is also advised not to look directly at the UV-C light.
Although 222nm (Far) UV-C has been proven safe for mammalian skin, it is still advised not to over-expose yourself or others.
Does UV-C penetrate through clothing
UV radiation is easily absorbed by clothing, plastic or glass. Once absorbed, UV radiation is no longer active.