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Air Cleaning: HVAC and AHU's

Air Cleaning: HVAC and AHU's

Airborne micro-organisms are not visible, so the ambient air in facilities is often dramatically underestimated. Once airborne, spores and bacteria can settle directly on products and accelerate their spoilage. In addition, machines, conveyors and packaging materials can also get contaminated by airborne micro-organisms.  

Integrating a UV-C disinfection device directly into your ventilation system brings your indoor air hygiene to the next level and is the perfect addition to filtration. UV-C inactivates airborne microbes 24/7, is safe and reliable, and does not use chemicals, so there is no risk of residues. 

We design germicidal UV-C irradiation systems to disinfect air safely. The use of full fresh air or HEPA systems is not economical or sustainable. Germicidal UV-C is now the preferred design, maintenance, and safe operation route for new buildings and refurbishment or retrofits into existing HVAC systems to comply with the Building Regulations Part F – Ventilation (as amended- January 2022):

1.37 Ventilation systems that, under normal operation, recirculate air between more than one space,
room or zone should also be able to operate in a mode that reduces the risk of the transmission of
airborne infection. This can be achieved by one or more of the following.
a. Systems capable of providing 100% outdoor air to the levels specified in paragraphs 1.32 to 1.34
to all occupiable rooms and common spaces, without recirculating air.
b. Systems incorporating a UV-C germicidal irradiation system that is able to disinfect the air that is
being recirculated. This type of system is commonly located within the heating, ventilation and
air conditioning (HVAC) system or ductwork.
c. Systems designed so that they can incorporate HEPA filters if required, which are able to provide
filtration of the recirculated air”

This essential amendment was instigated by SAGE and Policy Makers in the UK in response to Covid-19, which is a primarily airborne pathogen but also, their concern over Influenza pandemic risk and other airborne infection epidemics or pandemics in the future. The aim is to create pandemic resilience against airborne respiratory diseases within the built environment by improving ventilation, filtration, and adding air disinfection systems for new and existing buildings, whilst mindful of low carbon targets. It is economical and safe to recirculate air back into rooms when UV-C systems are designed by competent professionals.

We use CFD modeling to accurately design the lethal dose requirements to destroy hazardous microbes between the range SARS-CoV-2 (which cause COVID-19) and Influenza A for conventional buildings but will always assess the risks and necessary target design risks for your ventilation system to ensure compliance with the Building Regulations but also the various statutory instruments that fall within the Health & Safet at Work etc Act 1974 and associated Regulations.

Computational Fluid Dynamics (CFD) modelling can be used to simulate the aerosols produced by people in a facility, as well as providing a visual representation of how they move and spread a part of the air flow and overall ventilation system design.

The use of these modelling methods allows us to suggest optimised solutions to help drastically reduce SBS and airborne pathogenic transmission risk between people within a building or transport mode.

See: CASE STUDIES

Benefits

Medical Grade Quality & Performance

Inactivates bacteria, viruses and phages without interruption of the production process.

Safely Decontaminate Occupied Spaces 24/7

Reduces the risk of product contamination through the air in the production facilities.

Outperform Covid Compliance Standards

Cost effective

Can be easily retrofitted into an existing air-duct.

Specified by a Chartered Engineer, Scientist or Medical Expert

Engineered to suit any sector or use.

Non-chemical, low energy, low maintenance

Perfect addition to indoor air filter technology

Full warranties, insurances and technical support

Adaptable - For use in all temperature ranges

If you do not have mechanical ventilation systems in place, local intervention is the best approach. These include installing devices such as UV-C upper-room emitters and fan-assisted UV upper-room emitters. We have a range of products that can provide maximum Covid air security in all types of facility. 

Request Details

Telephone 0800 471 4871
enquiries@ppl-biosafety.com