The PRS Journey

The onset of the global pandemic led us to develop a method of providing safer air circulation within buildings. It was clear to us that SARS-CoV-2 was spreading via airborne transmission, and that a technology able to inactivate the virus would also be a universal application against other airborne pathogens.

A group of leading scientists, engineers and business professionals teamed together to identify potential solutions and develop a working system. We knew that UVC at 254nm wavelength is an effective way of ‘killing’ all pathogens. UVC is used in water treatment and for surface cleaning, particularly in hospital operating theatres. However, it had not been considered for removing viruses in large volumes of moving gas, such as air.

Dr Robert McCullough, our Chief Scientific Officer, was able to accurately calculate the levels of irradiation required to inactivate the virus in fast-moving air, ensuring the solution would be effective across all areas of the light chamber. Prototypes were developed and refined until we had a viable technology. 

Now fully perfected, the Pathogen Reduction System is the only technology in the world able to inactive pathogens, traveling at speed through the optical chamber, in a single pass. By default, the system is calibrated to inactivate Measles, which is harder to ‘kill’ than SARS-CoV-2. PRS generates enough UVC irradiation to handle viruses, traveling at high speed, in a fraction of a second. The mathematical calculations are linear, so the formula can be used for any duct size, at any velocity, of any system.