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High-Output UVC for HVAC-R Coil Hygiene, IAQ & AS 3666 Compliance
Steril-Aire is a global pioneer in ultraviolet-C (UVC) germicidal solutions for HVAC-R systems, delivering some of the highest-output UVGI emitters available. Their patented UVC Emitter™ technology is engineered to restore and maintain coil performance, eliminate biofilm, improve indoor air quality (IAQ) and reduce the HVAC energy penalties associated with microbial fouling.
Steril-Aire systems are widely used in healthcare, education, laboratories, food processing, commercial buildings, government facilities and high-risk environments, supported in Australia through authorised distributors and specialist HVAC-R partners.
For consulting engineers, mechanical contractors, and facilities managers, Steril-Aire provides a validated, high-intensity UVGI solution that aligns naturally with AS 3666 microbial-control requirements, AS 1668.2 ventilation objectives and energy-efficiency initiatives.
High-Output UVGI Emitters – Industry-Leading Germicidal Performance
Steril-Aire’s UVC Emitter™ delivers 6–8× the germicidal output of typical UV lamps at the peak wavelength of 253.7 nm.
Product overview: https://steril-aire.com/products/
Technical Advantages
- Precise peak germicidal wavelength (253.7 nm)
- High photon density for deep biofilm penetration
- Continuous destruction of microbial contamination on coils & drain pans
- Maintains output even in cold HVAC environments (where standard UVC drops >60%)
- Suitable for RTPF coils, VRF/VRV coils, FCUs, AHUs and large commercial air handlers
Steril-Aire’s high-output UVGI is supported by independent studies across hospitals, schools, food-processing facilities and government buildings.
Evidence base: https://steril-aire.com/resources/
The Steril-Aire catalogue includes:
- Single-ended & double-ended emitters
- Coil-mounted arrays & multi-lamp racks
- UVC safety controllers
- Portable UVC units for maintenance
https://steril-aire.com/products/
Coil Surface Disinfection – Restoring HVAC Efficiency
Over time, HVAC coils accumulate biofilm, a microbial layer that:
- increases pressure drop
- reduces heat-transfer effectiveness
- elevates fan & compressor energy
- causes odour and IAQ complaints
Steril-Aire coil-mounted UVGI systems destroy biofilm directly at the coil surface:
https://steril-aire.com/applications/air-handlers/
- Performance Benefits
- Restores coil ΔT, thermal efficiency & airflow
- Lower fan energy due to reduced static pressure
- Lower compressor lift + increased system capacity
- Reduces AS 3666 cleaning frequency
- “Always on” microbial suppression prevents regrowth
These systems are widely adopted in hospitals, universities, coastal facilities and high-density commercial buildings.
In-Duct UVC – Airborne Pathogen Reduction
Steril-Aire’s in-duct UVGI arrays create a high-intensity irradiation zone inside supply or return ductwork.
https://steril-aire.com/applications/in-duct-air/
Applications:
- airborne infection reduction
- high-risk healthcare zones
- food-processing clean spaces
- densely occupied education facilities
- industrial airborne contamination control
In-duct UVC supplements AS 1668.2 ventilation where outdoor-air allowances are limited.
Upper-Air UVC for Occupied Rooms
Steril-Aire’s upper-air systems disinfect air within the occupied space using controlled UVC zones.
https://steril-aire.com/applications/upper-air/
Used in:
- clinics & healthcare waiting areas
- aged care facilities
- classrooms & lecture theatres
- R&D labs, correctional facilities
- high-density commercial spaces
- Emitters, Fixtures & Mounting Systems
Industry Recognition
1. Cairns Regional Council / Energy.gov.au – Government-Verified Performance
Steril-Aire was trialled and then permanently installed in Cairns Regional Council facilities.
Measured outcomes include:
- 12% reduction in HVAC energy consumption
- Up to 99% microbial elimination in HVAC systems
- Significant reduction in coil fouling & IAQ issues
Cairns Case Study:
https://steril-aire.com.au/case_study/education-case-study/
This is one of Australia’s strongest publicly documented UVGI case studies.
2. BGIS Defence AHU Case Study – Presented at FMA National Summit
BGIS demonstrated Steril-Aire UVC in Defence air-handling units at the FMA Maintenance Management Summit, showcasing:
- Improved coil cleanliness & IAQ
- Reduced AHU energy consumption
- Applicability to mission-critical Defence infrastructure
- Recognition of Steril-Aire as a global leader in high-output UVGI
BGIS Case Study:
https://issuu.com/passivehousetrust/docs/bgis_case_study_-_defence_ahu_ultraviolet_lightin
3. Architecture & Design – Clean-Air Technology Trial
Steril-Aire’s UVC was featured in Architecture & Design, within Queensland clean-air technology evaluations.
The article highlights:
- High-output UV-C for microbial DNA disruption
- HVAC airstream disinfection for IAQ improvement
- Role of UVGI in multi-layer clean-air strategies
Architecture & Design Article:
https://www.architectureanddesign.com.au/features/features-articles/queenslanders-put-clean-air-technology-to-test
Why Engineers, Contractors & FM Teams Choose Steril-Aire
Consulting Engineers
- High-output UVC with verified case studies
- AS 3666-aligned microbial control
- Reliable performance modelling data
- Strong differentiation from low-output UVC products
Mechanical Contractors
- Simple installation
- Annual emitter replacement
- Reduced coil-cleaning obligations
- Ideal for retrofit and upgrade projects
Facilities Managers
- Reduced HVAC energy costs
- Lower hygiene maintenance frequency
- Fewer IAQ complaints
- Stable coil performance year-round
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