HVAC Hygiene, System Restoration & Indoor Air Quality Compliance for Australian Commercial Buildings

Air Restore is a specialist Australian provider of HVAC hygiene, ductwork decontamination, air-handling unit (AHU) restoration, coil and filter remediation, mould removal and indoor air-quality (IAQ) testing. Their work directly supports consulting engineers, project managers and facilities managers responsible for delivering safe, compliant and efficient mechanical systems in commercial, healthcare, education, laboratory and industrial environments with hvac technical requirements.

Air Restore operates at the technical intersection of AS 3666 (Microbial Control), AS 1668.2 (Ventilation), NCC Section F (Health & Amenity) and AIRAH HVAC Hygiene Best-Practice Guidelines. Their expertise helps close the gap between design intent and real-world system performance, particularly in buildings affected by fouling, contamination, poor drainage, mould outbreaks, airflow degradation or IAQ complaints.

By restoring HVAC assets to near-as-new internal condition, Air Restore improves airflow, filtration efficiency, coil heat-exchange performance, pressure stability and IAQ outcomes, while reducing energy consumption and extending system life — key priorities for engineers and facility operators.

HVAC System Restoration & Decontamination

https://airrestore.com.au/services/

Air Restore delivers full HVAC restoration across AHUs, ductwork systems, coils, fans and plenum chambers. Over time, these components accumulate dust, debris, biofilm and microbial contamination that significantly degrade system performance within the air ductwork network.

For FM teams, full system restoration delivers:

1. Reduced coil pressure drop and improved heat-exchange performance
2. Restored airflow delivery and reduced fan energy demand
3. Cleaner air pathways supporting AS 1668.2 ventilation requirements and improved air diffusion
4. Improved indoor air quality through removal of contamination sources

The process includes internal vacuuming, mechanical agitation, surface treatment, disinfection and photographic reporting for commissioning and FM documentation, restoring cleaner internal hvac duct pathways.

Ductwork Cleaning & Air Hygiene Compliance

This includes restoration and cleaning of air-conditioning ducting and general ventilation ductwork systems, including risers and, where within scope, kitchen exhaust ducting and associated hood plenums and filters in commercial buildings.

Duct systems are major contributors to IAQ issues when contaminated. Air Restore provides deep decontamination of:

1. supply air ducts
2. return air ducts
3. exhaust and general ventilation air ductwork
4. risers, plenums and concealed cavities

They implement HEPA-filtered negative-air extraction, contamination control barriers and safe removal protocols to prevent cross-contamination throughout the ductwork system.

Coil Cleaning, Drain Pan Restoration & Heat-Exchange Efficiency Recovery

Dirty coils with biofilm and dust layers reduce cooling capacity, increase energy consumption and degrade system hygiene. Air Restore performs:

• Deep evaporator and condenser coil cleaning (coils and condensers)
• Biofilm removal
• Disinfectant treatment
• Drain pan refurbishment

This restores manufacturer-intended performance, improves system efficiency in a/c & refrigeration contexts, and supports compliance with microbial control expectations under AS 3666.2.

Filter System Servicing & Filtration Integrity

Proper filtration protects coils, hvac duct, and downstream system components. Air Restore provides:

• filter replacement and upgrades
• seal and gasket inspections
• pressure-drop monitoring
• filter bank integrity checks

This supports IAQ stability, system hygiene and performance in alignment with AS 1668.2 ventilation objectives and overall hvac technical operation.

HVAC Hygiene Audits & Condition Assessments

https://airrestore.com.au/services/hvac-hygies-audits/

Air Restore conducts comprehensive hygiene audits used by:

• Consulting engineers for due diligence
• FM teams for lifecycle planning
• Builders for PC/defects
• Property managers for IAQ concerns

Audits include:

• microbial contamination assessment
• dust/debris quantification
• coil and filter condition
• duct interior cleanliness (air ductwork)
• moisture ingress and mould inspection
• odour source tracing
• detailed photographic evidence

Reports reference AS 3666.2 and AIRAH HVAC Hygiene guidelines and support maintenance teams including heating ventilation and air conditioning technician roles.

Mould Remediation in HVAC Systems

https://airrestore.com.au/services/hvac-mould-remediation/

Moisture accumulation, condensation and stagnant airflow create mould risk within HVAC systems. Air Restore performs safe, targeted remediation across:

• AHUs
• ductwork
• FCUs
• supply and return plenums
• insulation linings
• drain pans and condensate paths

Their remediation methods follow best practice for infection control, ensuring contamination is removed without dispersing spores into adjacent areas within the ductwork system.

Indoor Air Quality Testing & Occupant Health Support

Air Restore provides IAQ measurement and monitoring aligned with NCC and AS 1668.2 expectations, including:

• particulate and airborne contaminant testing
• microbial air sampling
• airflow and ventilation rate checks supporting effective air diffusion
• VOC and odour tracing
• environmental condition measurement

This supports engineering decisions on ventilation upgrades, tenancy disputes, IAQ complaints, and pre-occupancy validation, particularly where airflow within hvac duct systems is compromised.

 

How Engineers, Contractors & FM Teams Use Air Restore

Consulting Engineers (Design, Refurbishment & Compliance Upgrades)

Engineers typically engage with Air Restore during refurbishment planning, IAQ investigations, and compliance-driven upgrades. Air Restore’s hygiene audits, photographic reporting and AS 3666 / AS 1668.2–aligned findings help engineers determine whether ductwork, AHUs, coils and plenums can be retained, restored or require replacement. Their assessments provide clarity for defect rectification, ventilation improvements and feasibility studies for major refurbishments involving air ductwork or critical hvac duct components.

Mechanical Contractors (Maintenance, Rectification & Refurbishment)

Contractors engage Air Restore when specialised hygiene works exceed standard mechanical maintenance scope. Typical engagement includes coil and drain pan restoration, duct cleaning prior to fitouts or make-goods, mould removal, and control of contamination during refurb works using HEPA negative-air systems. Air Restore helps contractors restore systems to a clean, compliant baseline within the broader ductwork system.

Facilities Management (Operational Performance, IAQ Stability & Lifecycle Planning)

FM teams rely on Air Restore to stabilise IAQ, reduce operational risk and maintain systems closer to design intent. Common FM drivers include IAQ complaints, odour events, airflow deterioration, filter bypass, coil fouling, and moisture-related mould issues within air ductwork or hvac duct paths. Air Restore provides clear, audit-ready documentation that supports NABERS Indoor Environment objectives, risk management frameworks and long-term asset planning.