There are two sides to talk about Ultraviolet LED sterilization:
First, ultraviolet irradiation all kinds of bacteria, such as DNA, RNA, etc., to interrupt or rearrangement, destroy bacteria, viruses, DNA, This makes bacteria can not be divided into replication, play a role in disinfection. Thereby enabling the bacteria died of natural causes or kill bacteria;
Second, the role of ultraviolet radiation on the oxygen in the air to produce ozone oxidation,oxidizing ozone can kill bacteria.. Basically all bacteria can kill, even for large creatures also have an impact.Such a conclusion that uv led strip has already been used for water and air disinfection, UV led lamps produce ultraviolet C (UVC) irradiation of the water,the water of bacteria, viruses, algae to have accepted such a UV lighting(such as UVC  wavelength 254nm irradiation). the cell’s DNA, RNA structure was destroyed, the cell can not be regenerated, bacterial virus loss of self replication, so as to achieve the purpose of disinfection.