Due to the filtering properties of the earth's atmospheric ozone layer, practically all of the ultraviolet light that reaches the earth's surface is the long-wave UVA, while the UVC is necessary to the generation of ozone.
Newer Alpine Air Ionizers bear the name "Living Air" and many models have adjustable knobs for controlling the amount of ozone that gets dispersed into the room and a UVC light for the elimination of certain bacteria.
Between the UVA, UVB, and UVC rays we always hear about, it's surprising that many people even care to venture outside, much less soak up the sun, especially sans sunglasses to avoid the "raccoon eyes" effect.
Some brands, like Spy sunglasses, even boast UVC protection, but that's not always necessary, since those rays don't make it through the earth's atmosphere.
They have tapered lenses that are designed to prevent distortion, even peripherally, while protecting your eyes from UVA, UVB, and UVC rays.
Concerns about the depletion of the ozone layer focus on the serious health effects that increased exposure to UVC light would have.
UVA, UVB, and UVC protection on all lenses to provide maximum protection against the entire range of potentially harmful radiation.
People rarely talk about UVC rays because they never even make it to the earth's surface to do any damage to humans.
Additionally, these lenses sport a polycarbonate finish that offers superior protection from UVA, UVB and UVC rays.
One set is polarized and blocks glare in bright light while offering 100 percent UVA, UVB, and even UVC protection.