How the Spectral Blue system works

Blue light disinfection system overview:

The Spectral Blue™ surface disinfection system consists of two parts:

  1. Spectral Blue disinfection devices.
  2. Optional - Control automation that switches between regular lighting and blue light disinfection mode automatically.

The disinfection devices provide the disinfecting MWHI blue light that eliminates pathogens from the room air and surfaces.

The control automation is optional, and means any switches, presence detectors and timers that you may use for controlling the device activity during the day. Most devices are DALI-equipped, allowing smart and flexible configuration. Alternatively you can just have regular on/off switches or devices with a wall plug. - Ideally your system is in blue light mode whenever the room is unoccupied and in general white light mode at other times.

Continuous disinfection - Blue light keeps facilities hygienic 24/7, not just once per day

Continuous disinfection with blue light explained

Read more about continuous disinfection.


Antimicrobial effect of the Spectral Blue system

Watch a video explaining the antimicrobial effect of Spectral Blue MWHI light at our science section. 

The ability of blue light to destroy microbes is based on its ability to energize naturally light-sensitive compounds inside microbial cells. 

When exposed to certain blue wavelengths and high enough intensity, these compounds start reacting, producing reactive oxygen radicals. These radicals, called Reactive oxygen species (ROS), are molecules containing very reactive oxygen. The ROS cause damage to the microbial cell's vital structures and destroys the cell internally.

Identified oxygen radicals are:

  • O2-     superoxide (type I reactions)
  • H2O2  hydrogen peroxide (type I reactions)
  • OH      hydroxyl radical (type I reactions)
  • 1O2     singlet oxygen (type II reactions)

Spectral Blue - the effect of blue light on microbes


To read more about the efficiency of the system against different pathogens, please see our science section.