The PRS System
The premium solution for HVAC systems
PRS offers a complete solution for commercial air handling in large buildings. Systems can be retrofitted and are manufactured on a bespoke basis, to suit the required volume and speed of airflow of your air-handling systems.
Any air-conditioning system which operates with recirculation can be considered. It can be installed in large ducts situated in AHU plant rooms, or smaller ducts within MVHR systems.
We manufacture units tailored to the exact size of ducting and then the UVC radiation levels are calibrated to suit the volume and speed or air to be treated.
Systems are designed to suit the specific air handling parameters of the building
Efficacy proven via live testing with SARS-CoV-2, Influenza A and Measles viruses
Inactivates in over 99.99% of SARS-CoV-2 in fast-moving air within HVAC systems
PRS units integrate into existing HVAC systems, retrofit or new build as required
The Pathogen Reduction System has undergone rigorous technical and scientific testing to demonstrate its operational efficacy and performance. PRS is undoubtedly the leading technology in its class, and it will lead the drive for improved indoor air safety for years to come.
We have the only UVC anti-pathogen system that can demonstrate its ability to inactivate airborne pathogens, traveling in fast-moving air, in a single pass. In addition to this, we have developed a patented UVC containment device which limits radiation leakage to within Risk Group 2. Personnel working in the vicinity are not at risk, despite the high levels of UVC light being generated within the optical cavity.
Efficacy proven using live viruses in fast- moving air at a Bio-Safety Level 3 Laboratory
Highest quality build and installation via partnerships with leading engineers
Fully tested and certified by Nemko, with SISTEMA safety sign-off
Risk Group 2 safety confirmed by testing at LUX TSI laboratory
UVC Safety Measures
We utilise UVC 254nm light in our anti-pathogen solution. High levels of UVC radiation are a danger to human beings, as well as many susceptible materials, so it is particularly important to highlight the safety measures and protocols built into PRS:
- UVC containment section – eliminates UVC leakage outside the optical cavity, ensuring UVC light cannot bleed into, or out of the ducting
- Automated cut-off – this mechanism turns off the UVC light source in the event of airflow being turned off for maintenance or the air handling system fails
- Power interlock – automatically turns the power off if anyone attempts to open the PRS
- Safety maintenance key – ensures that the system cannot be turned on during maintenance
Integration into HVAC
The primary plant equipment in a modern, commercial air conditioning systems is the Air Handling Unit (AHU). The AHU processes all the air before it is released into the building’s general population. Fresh air from outside is drawn into the system, where it is filtered and temperature-managed, to ensure a constant and comfortable atmosphere for occupants.
HVAC systems typically recirculate 70%-80% of the building’s air. As air completes its cycle and returns to the AHU most of it is mixed with incoming fresh air to begin the cycle again. In this system the majority of the air circulated is already at an ambient temperature, and less heating or cooling is required.
The PRS unit is installed in a suitable section of ducting, after this air processing has taken place. This ensures that all air is treated every time it circulates through the handling system.
HVAC systems are typically set to recirculate air between 5-8 times per hour, so any airborne pathogens present in the building will be quickly inactivated, preventing the build up of a dangerous viral load.
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