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UV Disinfection Robot

As a patient in a hospital, you are in a vulnerable situation and extra susceptible to bacteria and viruses. Because of this, hygiene is a top priority.


Start: 2019
End: January 2021


The Department of Clinical Microbiology at Odense University Hospital tested two UV Disinfection Robots as an addition to the existing cleaning measures. The robots disinfected a room by using ultraviolet light.


The project was affected by technical and practical problems with the robots as well as by the covid-19 pandemic, as the framework of the ward where the tests were conducted changed along the way.

Based on the available data, it was not possible to assess whether the UV Disinfection Robot could be used to prevent hospital-acquired infections. Immediately after use, the robot reduced the occurrence of bacteria to a lower level than ordinary cleaning, but no decrease in the occurrence of pathogenic microorganisms in the environment was seen throughout the project period.

There must be no people in the room when the robot lights up, so the use of the robot in multi-bed rooms, where there were always patients in the room, was a big logistical challenge that required dedicated trained staff.

The evaluation pointed to some recommendations regarding testing and use of the robot, including:

  1. future testing of the disinfection effect of UV products should be done according to the newly published CEN guidance
  2. tests can advantageously be carried out in private rooms
  3. the extent of air nuisances should be mapped
  4. the effect of lighting on solid and liquid medications, e.g. medication and hand sanitiser, should be investigated further
Robot emits blue light in hospital room

In the photo, one of the robots is disinfecting a hospital room with UVC light.


The project was developed by the Department of Clinical Microbiology at Odense University Hospital in collaboration with the Department of Haematology, Cleaning and Patient Services and Facilities Management.


The project was funded by the Region of Southern Denmark and Odense University Hospital.

Sanne Grønvall Kjær Hansen

Chief Consultant

Department of Clinical Microbiology

(+45) 6541 1348
Esben Hansen

Esben Hansen

Technical Manager

Centre for Clinical Robotics

(+45) 5146 6767