The ultraviolet germicidal lamp has two main emission spectrum lines: 254nm and 185nm. 254nm ultraviolet rays kill bacteria by irradiating the DNA of microorganisms. 185nm ultraviolet rays can turn O2 in the air into O3 (ozone). Ozone has a strong oxidizing effect and can effectively kill bacteria. Propagation and disinfection in a straight line have the disadvantage of dead ends.
During the refining of quartz glass, if a sufficient amount of titanium (Ti) element is added, the ultraviolet rays passing through it can be cut off below 200nm, and there is basically no effect on the transmission of 254nm ultraviolet rays. Appropriate control of the amount of titanium added can effectively control the amount of 185nm ultraviolet radiation. According to this feature, three types of ultraviolet germicidal lamps, such as low ozone (no ozone), ozone, and high ozone, can be produced.
