It is the short-wavelength light emitted from the sun which splits into UV-A, UV-B, UV-C. UV-C is the shortest one which has the germicidal effect. UV-C is good in breaking molecular bonds, altering ...
The use of UV light as a method to sterilize areas and reduce the transmission of pathogens was first proposed in 1878 by Arthur Downes and Thomas P. Blunt. Soon after, the first recorded use of UV ...