UV disinfection: Photolytic germicidal technology for the highest commercial demands
Technical Dossier: Mode of Operation and Spectral Ranges of UV Technology
The effectiveness of UV disinfection is based on the absorption of radiation energy by the nucleic acids (DNA/RNA) of pathogens. This process leads to the photolytic destruction of the genetic information, thus preventing the reproduction of viruses, bacteria, and fungal spores.
UV-C: The sterilization dimension (200-280 nm)
The short-wave UV-C range, especially the wavelength of 253.7 nm, has the highest germicidal effect. Our systems utilize this energy for:
- Surface disinfection: In UVC chambers for instruments, tools and electronics.
- Air purification: In shielded air purifiers to reduce the aerosol germ load in real time.
- Advantage: No resistance can develop in microorganisms.
UV-A: The attraction effect (315–400 nm)
Long-wave UV-A radiation is primarily used for professional pest control. Its specific attraction to flying insects enables HACCP-compliant hygiene in food processing.
Comprehensive expertise on UV disinfection – FAQ
Against which pathogens is UV light effective?
UV-C radiation is effective against a broad spectrum of microorganisms, including bacteria (such as MRSA, E. coli, Legionella), viruses (influenza, coronaviruses), yeasts, and even resistant mold spores. The inactivation rate depends on the irradiance and duration.
What advantages does UV disinfection offer compared to chemical disinfection?
The advantages lie in the speed, the fact that it leaves no residue (no chemical films), and its gentleness on materials. UV light is ideal for dry environments and sensitive surfaces such as keyboards, displays, or textiles that would be damaged by alcohol or chlorine.
Can UV light disinfect through glass?
Ordinary window glass almost completely blocks UV-C radiation. Therefore, for efficient disinfection, our devices use special quartz glass for the light sources, which is highly transparent to the germicidal wavelength. Irradiation must always be direct.
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