UV knowledge

UV knowledge

How does disinfection with UV light work?

UV light disinfection, also known as UV-C disinfection, relies on the use of ultraviolet light with a wavelength of 254 nanometers. This specific UV-C light has the ability to destroy or deactivate the DNA and RNA of microorganisms such as bacteria, viruses, and protozoa by damaging their nucleic acids.

The process of disinfection with UV light typically occurs in special devices or systems that contain UV-C lamps. These lamps generate UV-C light that is directed onto surfaces or liquids that need to be disinfected. The UV rays penetrate the cell walls of microorganisms and cause damage to their DNA or RNA, leading to their inactivation.

There are various types of UV-C disinfection systems, including those for air disinfection, water treatment, and surface disinfection. Some devices use motion or reflectors to ensure that the UV light is efficiently directed onto the surface or liquid to be disinfected.

It’s important to note that UV-C light can potentially be hazardous if it directly contacts the skin or eyes. Therefore, UV-C disinfection systems must be designed and operated safely to minimize the risk of skin or eye damage.

Overall, UV light disinfection is an effective method for inactivating microorganisms on surfaces, in water, and in the air, and it is used in various fields

 such as healthcare, food industry, water and wastewater treatment, as well as in public facilities.

What are the advantages of disinfection with UV light?


UV-C light is highly effective at inactivating a variety of microorganisms, including bacteria, viruses, and protozoa. It can achieve a high reduction in microbial count on surfaces, in water, and in the air.

No chemical residues

Unlike some chemical disinfectants, UV light leaves no residues on treated surfaces or in water.

Rapid disinfection

UV-C light can inactivate microorganisms relatively quickly, leading to rapid disinfection processes, especially compared to some chemical disinfection methods.

Wide range of applications

UV light disinfection systems can be used in various areas, including healthcare, food industry, water treatment, air purification, and public facilities.

Environmental friendliness

UV disinfection requires no use of chemicals that may be potentially harmful to the environment. It is therefore a more environmentally friendly disinfection method.

Minimal risk of resistance development

Unlike some antimicrobial substances, there is a lower risk of microorganisms becoming resistant to UV light.

Easy maintenance

UV disinfection systems typically require minimal maintenance and are relatively easy to operate.

Effective and versatile

Overall, UV light disinfection provides an effective and versatile method for reducing microorganisms in various environments while being environmentally friendly and resource-efficient.