TRANSFORMING INDOOR AIR QUALITY
& ENERGY EFFICIENCY WORLDWIDE
World leading UVC Solutions for Commercial Air Handling Systems
TRANSFORMING INDOOR AIR QUALITY
& ENERGY EFFICIENCY WORLDWIDE
World leading UVC Solutions for Commercial Air Handling Systems
Indoor Air Quality Specialists
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. Testing information can be downloaded here, and review the full case study report here.
PRS allows buildings to safely re-circulate air, leading to significant energy savings and of course, a healthier environment for occupants. A groundbreaking IAQ technology solution helping people, planet & performance.
“PRS is a multi-patented technology, fully tested and compliant and now proven in situ. It should be an Integral part the any forward thinking, building owner’s IAQ Strategy…”

Awards Won

Our Value Proposition
Our IAQ solution addresses many of the significant commercial and ethical challenges faced by tenants and landlords alike. Central to PRS’ value proposition are five key components highlighted here.
- Reduced Energy Use
- Improved Environmental Sustainability
- Ensured Pathogen Resiliency
- Higher Economic Productivity
- Reduced Pollution Exposure
Whether your strategy leans towards a proactive approach aimed at market leadership through an innovative IAQ management program, or a more defensive strategy focused on protecting asset values, PRS equips you to take informed, practical, and cost-effective measures which will lead to a reduction in operating costs and enhanced occupant wellbeing.
The Case Study (see below) illustrates the effectiveness of PRS technology in a live context, and for further information we recommend you follow the link below to learn more about the performance opportunities and how the six key components apply to your situation:
PRS in Action
Global HQ in Canary Wharf
In 2023, a global blue-chip company agreed to pilot PRS at their headquarters in London. Like other progressive companies, 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 of all the testing undertaken up to February 2024 can be viewed in the full report which is downloadable from the adjacent link.
This round of testing underscores PRS’s role as a complement to an existing air handling system and associated physical filtration. It clearly highlighted the opportunity to optimise IAQ while reducing 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 unit (i.e., downstream from the unit), 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/immune-compromised. Regardless of the underlying causes of these significant mould spikes, PRS is demonstrably reducing the risk of exposure.
“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)
ESG Accountability
PRS will help most businesses meet their ESG obligations. Our constantly evolving technology, has 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 is the optimum long-term solution. Our system can handle 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.
People, Planet, and Performance is a promise we deliver on. We provide high performance indoor air quality solutions that protect building occupants and enhance confidence, while reducing energy consumption and improving productivity.


PRS Video Library
TRANSFORMING INDOOR AIR QUALITY
& ENERGY EFFICIENCY WORLDWIDE
TRANSFORMING INDOOR AIR QUALITY & ENERGY EFFICIENCY WORLDWIDE