Invest for the Future


The global pandemic has brought the issue of pathogen infections in buildings to the fore. Air quality has always been a consideration, and with the development of air recirculation systems in modern buildings many facets of air quality control have been addressed, but airborne micro viruses are, by their very nature, much harder to combat.

The Pathogen Reduction System© provides the technology to deactivate airborne viruses, such as SARS-COV-2, within the air being mechanically circulated around buildings. The UVC radiation generated by PRS solutions is far in excess of what is required to deactivate COVID-19, and it will also neutralise TB, MRSA and Influenza, along with very small viruses such as Measles.

Our technology will future-proof existing buildings and will become a standard for modern building development in the future.

“PRS will protect your buildings against airborne pathogens, now and in the future!”       

Dr. R. McCullough, Ph.D

Scientific Advisor


  • Scientifically proven
  • De-activates 99.99% of Covid-19
  • Integrates into existing plant
  • Bespoke build
  • Permanent solution
  • Cost effective
  • Total building coverage

Current Protocols

Guidelines laid out by government, industry, and health bodies since the beginning of the global pandemic suggest that buildings with mechanical air handling systems should operate these systems using 100% fresh air, to minimise the possibility of viruses being recirculated and infecting the occupants of the building. While this protocol keeps the inhabitants safe it puts great strain on the heating and ventilation systems in the building, leading to deterioration of the plant equipment and a huge increase in energy costs during winter months.

Another protection considered to deter the spread of COVID-19 is the use of high-efficiency particulate air (HEPA) filters. Such filters are typically only used in environments such as hospitals, aeroplanes, and food processing, however they do not protect against small viruses such as SARS-COV-2.

A HEPA filter is designed to reduce odours and extract bacteria, down to a level of 0.3 microns. The Covid-19 microbes range from 0.06-0.125 microns, meaning the filter will have little impact. Furthermore, if installed in a ventilation system they cause a large amount of additional friction to the airflow and this leads to increased energy costs and degradation of equipment.

A Pathogen Reduction System© allows your building’s ventilation systems to operate with the same efficiencies as before the pandemic, with none of the restrictions of recommended protocols.

Risk Mitigation


Dilution of any viral or bacterial contaminant in the air mitigates risk. The higher the viral load and the longer our exposure, the greater the risk of infection.

With PRS installed any air within a mechanical air circulation system is constantly being treated, preventing a build-up of viral load.

Investing in a Pathogen Reduction System© will protect the occupants of your buildings against airborne pathogens, now and in the future!

The PRS ‘Kill’ Zone


The configuration of the optical cavity within the PRS unit, and its highly reflective properties, maximises the use of the photons, allowing pathogens to be bombarded from all angles. This 360˚ attack ensures the dose of UVC is maximised and achieves the desired rate of inactivation within a single pass.

These design elements mean that we are able to increase the amount of UVC radiation far beyond the levels required to  deactivate SARS-COV-2, making PRS the premier solution for mechanical air handling systems.

About UVC

UVC 254nm light has long been used to inactivate pathogens and there is a wealth of test data available detailing the UV rate constant m²/J for various pathogens.  PRS technology deactivates the following viruses and it generates enough radiation to cope with much smaller ones as well.

m²/J m²/J
SARS 0.377 Measles 0.1051
Covid-19 0.15 – 0.25 MRSA 0.596
Influenza A 0.119 TB 0.472
de-activating covid


prs pathogen reduction systems


pathogen reduction systems


pathogen reduction systems covid air conditioning


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