A study from the University of São Paulo evaluated the effectiveness of 12 models and found that only one met the safety ...

UV radiation is divided into three bands—UVC (100 to 280 nm), UVB (280 to 315 nm), and UVA (315 to 400 nm). "We've been researching this in our lab since the 1990s. We've developed a science ...

[David Prutchi] has just shared his incredible work on making his own shortwave ultraviolet viewers for ... UV (SBUV): Solar radiation in the 240 nm to 280 nm range is completely absorbed by ...

Wavelength Ultraviolet Region (nm) UVA Long-wave "A" 315-400 UVB Medium-wave "B" 280-315 UVC Short-wave "C" 100-280 NUV Near ultraviolet 300-400 MUV Middle ultraviolet 200-300 DUV Deep Ultraviolet ...

UV radiation is arbitrarily divided into UV-A (315 nm to 400 nm), UV-B (280 nm to 315 nm), and UV-C (100 nm to 280 ... erythema (sunburn), and skin aging are also known effects of ultraviolet skin ...