UV (ultraviolet) lamps are widely used in air purifiers as a key sterilization method of purification. There is a basic explanation of how UVC lamps work in air purifiers:
UV-C Light effect:
Air purifiers equipped with UV-C light. 254nm UVC makes it effective at killing microorganisms like bacteria, viruses, and mold.
Destroy DNA/RNA:
UVC lamp can kill germs and virus by destroying the DNA or RNA of these microorganisms. It prevents them from reproduction and renders them inactive.
Inactivate microorganisms:
The UV-C light damages the nucleic acids in the microorganisms, which are essential for their survival and reproduction. This process is known as microbial inactivation.
Eliminate airborne pathogen:
The fan blow air into the air purifier , and air passes through UV lamp. UV lamp targets and neutralizes airborne pathogens such as bacteria and viruses. It helps to reduce the overall microbial load in the air.
Work as a complementary technology:
UV-C light is often used with other air purification technologies, such as photo-catalyst filter, HEPA filters or activated carbon filters . So that they can provide a comprehensive approach to air purification. While UV-C light is effective against microorganisms, filters are effective in removing larger particles,such as dust and pollen.
The effectiveness of UV-C light in air purifiers depends on factors such as the intensity of the UV-C light, exposure time, and the flow rate of air through the purifier.
At the same time , UV-C light should be used as a supplementary method rather than the one and only method of air purification, as it may not be as effective against all types of airborne particles.