Ultraviolet Cum Ozone germicidal Irradiation Sterilization

Ultraviolet or UV light is light that has a higher frequency than visible light. As violet is the color of the highest frequency of visible light; ultraviolet light is the term we apply to light that has frequencies higher than visible light.

Visible light is normally measured in wavelengths with the unit of nanometers (nm). As the wavelength (nm) increases the frequency of light decreases. Visible light is usually defined as having wavelengths in the range of 400 – 700 nm. Ultraviolet light is usually defined as the range between 100 – 380 nm.

UV light in the range from 160 – 240 nm will create ozone from oxygen. Ozone is created by the photolysis of the oxygen molecule (O2). This will disrupt the molecule and create valent oxygen atoms (O) that will then attach to any individual oxygen molecules (O2) to create ozone (O3).

It is important to note that every commercial UV light will produce a range of UV light, and not only one single wavelength. A 185 nm wavelength UV light is “tuned” to produce UV light at 185 nm, but may create UV light from 100 – 240 nm, or even higher.