Improve IAQ

Pathogen Reduction Solutions limited (PRS) is a science led company that provides safe air solutions for indoor spaces. Our ground-breaking, joint UK/US- developed, multi-patented technology, safely and effectively inactivates airborne pathogens passing through indoor Heating Ventilation and Air Conditioning (HVAC) and other enclosed air handling systems.

PRS systems use high intensity UVC 254nm light within a unique optical cavity to instantly inactivate pathogens such as bacteria, viruses, and mould as they pass through the optical cavity. Results of BSL3 lab and live site testing confirm we have the leading UVC solution for safe air in the world. Our claim is supported by downloadable testing information, which can be accessed here, and a full case study report to be found in the efficacy section below.

Continual treatment by PRS systems allows buildings to safely recirculate air, leading to significant energy savings and a healthier environment for occupants. Application will help preserve asset values while improving occupant confidence and productivity.

“PRS multi-patented technology, fully tested and compliant, is an integral part of the new IAQ story…”

Ian Sinclair

CEO & Founder

Case Study

Video Library

“I am honored to be joining the PRS Advisory Board at a time when reduced energy consumption and improved air quality are the watchwords for mitigating climate change and improving human health. Our shared goal is to accelerate the path for people-first places that can support the health of millions of people now, and in the future. It’s an exciting time.”

Advisory Board Member

Ann Marie Aguilar
Senior Vice President
International WELL Building Institute (IWBI)

Proven Efficacy

Being scienced based and rapidly becoming the world leading experts in this field, we believe continuous R&D, product evolution and advanced testing are all vital to both our business, and world science understanding of the problems and solutions we all need.

To this end, we have insisted the efficacy testing carried out on our optical cavity used ‘Live’ pathogens (initially: SARS-CoV-2, Flu A, Measles) rather than surrogates, in fast moving air (6m/s – residence time of 1/6 second), in conditions that replicate real life. This testing exceeds standards set by ASHRAE 185 and ISO 15714.

After this initial testing we worked with the NHS’ Innovation Agency team at the University of Liverpool to confirm efficacy using their testing standards. Their protocol differed considerably from our earlier testing, and involved using Micrococcus Luteus, a bacterium that is far harder to kill than the viruses used in our earlier testing. A control technology was used for comparison, which PRS outperformed by a factor of 10.

Having completed testing using NHS protocols we then used their bacteria and ASHRAE’s preferred pathogen, (Mycobacterium Parafortuitum) in testing that matched our earlier work with SARS-CoV-2 et al. For good measure we then modified our air speed and subjected our test unit to Aspergillus Niger, a particularly hardy fungus.

Case Study

Following lengthy collaborative discussions, to understand firsthand, PRS’s application, our client agreed in 2023 to pilot PRS at their global headquarters in London. They are proactive on health and wellbeing issues and already regularly test the air quality in the building.

PRS units were installed on the 2nd floor with 1st floor serving as the initial control floor, both 32,000 sq. ft. floors having similar physical configurations and near identical occupancy levels. Petri dish testing was used to identify levels of mould and bacteria, and air monitors used to identify levels of volatile organic compounds (VOCs).

With initial testing in August clearly confirming the laboratory performance, another round of testing was completed in November 2023, this time across all 10 floors controlled by the client. This test produced even more compelling results. Occupant exposures experienced on the PRS-protected 2nd floor were 98.7% and 77.9% less than the average bacteria and mould exposures, respectively, as conservatively averaged across testing on the other 9 floors, including the original 1st floor used as a control.

The results are shown in the chart below. Full details all the testing undertaken up to February 2024 can be viewed in the full report which is downloadable from the adjacent link.

Case Study Report – 2024

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NOVEMBER 1ST, 2023 RESULT – INDOOR AIR QUALITY SUMMARY

Experience with this round of testing underscores PRS’s role as a complement to an existing air handling system including physical filtration, and the opportunity over time to optimise the IAQ relative to energy consumption. The testing identified several high mould counts on other floors, in most cases downstream from physical filtration. There was one exceptionally high upstream mould count reading on the 2nd floor, but after the air passed through the PRS (i.e., downstream from the PRS), the 2nd floor occupants’ mould exposure was reduced by over 94% vs. the 78% average reduction cited above.

Mould exposure can cause many health effects from sore throat, coughing or wheezing, to more severe reactions for people with asthma or who are allergic and/or immune-compromised. Regardless of root cause(s) for these significant mould spikes, PRS is demonstrably reducing the risk of exposure.

View Testing Data:

Download Info

UVC Safety Testing

Live Virus Testing

Electrical Safety Testing

ESG Accountability

PRS will help most businesses meet their ESG obligations. Our constantly evolving technology, the best available, and recently qualified for the IWBI Works with WELL license, helps lower fuel consumption relative to alternative strategies, reducing carbon output and consumable waste, thereby demonstrating good environmental stewardship.

Protecting people within our spaces is both a moral and a legislative duty for us all. Whether it’s improving general health and wellbeing or protecting against the next pandemic, PRS has the long-term solution. Our system doesn’t discriminate, handling any airborne pathogen in a fast and effective manner. Confident occupants will be more productive as the prevalence of moulds, viruses and other airborne bugs is greatly reduced.

Any Pathogen, Any Space, Any Environment is a statement we deliver on. We build solutions to suit the space, capacity, and the level of efficacy required. Our technology enhances occupant confidence while ensuring a safer environment across a spectrum of indoor spaces.