The UV light on an air purifier uses the UV-C spectrum of ultraviolet light to inactivate airborne pathogens and microorganisms like mold, bacteria, and viruses. The purpose of the UV mode on an air purifier is to sterilize indoor air. UV lights on air purifiers are effective against microorganisms and pathogens because exposure to ultraviolet light damages their DNA and RNA structure so reproduction cannot occur. For example, bacteria have a single cell that relies on their DNA to survive. Therefore, when bacteria encounter a UV light on an air purifier, the bacterial cell’s DNA gets sufficiently damaged, which triggers a self-destruct mechanism that renders it harmless.
How Does a UV Air Purifier Work?
A UV air purifier pulls air into the unit and passes it through a filter, such as a HEPA filter. The air then passes through an internal chamber exposed to UV-C light. The UV air purifier works here to inactivate microorganisms and pathogens.
Essentially, a UV Air purifier picks up where all other air purification technologies fail by improving air quality within your home or building. It is a sanitation device that can reduce your exposure to mold, mildew, bacteria, and viruses.