Mission-Critical Environments: HVAC Hygiene for Defence & Aerospace
Defence and aerospace facilities demand secure, contamination-controlled HVAC systems to protect personnel, sensitive equipment, and operational readiness.
Duct Cleaning
AHU Cleaning
Filter Cleaning
Fan/AHU Restoration
Exhaust System Cleaning
Coil Cleaning
Split-system Cleaning
HVAC Asset Protection
Clean Room Cleaning
Defence & Aerospace – HVAC Hygiene for Secure and Critical Facilities
Defence and aerospace environments operate under strict security, safety, and performance requirements. From bases and hangars to command centres, laboratories, and maintenance facilities, HVAC systems play a critical role in maintaining air quality, environmental stability, and protection of high-value assets.
Airborne particulates, microbial contamination, and degraded HVAC performance can compromise sensitive equipment, affect personnel health, and disrupt mission-critical operations. Maintenance works must be meticulously planned, fully documented, and executed by security-cleared technicians who understand the operational constraints of secure facilities.
Clean-Air delivers specialised HVAC hygiene services for defence and aerospace sites, combining controlled work practices, advanced containment, and compliance-aligned processes to maintain system integrity, reliability, and environmental control across secure and restricted environments.
HVAC Hygiene and Contamination Control Services for Defence and Aerospace


AHU & Duct Cleaning for Secure Facilities
HVAC systems serving defence and aerospace facilities require scheduled hygiene maintenance to ensure airflow performance, contamination control, and asset protection.
Our services include:
- Air handling unit (AHU) cleaning
- Supply, return, and exhaust duct cleaning
- Ceiling voids, risers, and service shafts
- HEPA-filtered negative pressure extraction
- Controlled access and staged works
- Full photographic and compliance reporting


Contamination & Particulate Control
Sensitive environments such as avionics areas, workshops, laboratories, and operations centres require strict control of particulates and fibres.
Our services include:
- Fibre and particulate removal
- Flexible duct replacement to NADCA and IICRC standards
- Diffuser, grille, and cushion box cleaning
- AerisGuard BioActive Surface Treatment
- Bio-static protection offering up to 12 months of microbial inhibition


Mould Remediation & Asset Protection
Moisture, condensation, and limited ventilation can lead to microbial growth within HVAC systems and building fabric — posing risks to personnel and equipment.
Our services include:
- IICRC-certified mould remediation
- Antimicrobial and protective surface treatments
- Aeris antimicrobial coatings for fibreglass-lined ductwork
- Corrosion protection for coils and mechanical components
- Post-remediation validation and reporting
Critical HVAC Considerations for Defence & Aerospace Facilities

Security & Access Compliance
Our technicians operate within secure environments and adhere to site-specific security protocols, access controls, and clearance requirements.

Controlled Containment Practices
We establish strict containment zones and utilise HEPA-filtered negative pressurisation to prevent cross-contamination during all hygiene activities.

Protection of Sensitive Equipment
All works are planned to safeguard avionics, communications systems, and mission-critical infrastructure.

Compliance & Documentation
Detailed reporting, photographic evidence, and method statements support audit, contractor management, and asset maintenance programs.

Operational Continuity
Staged works and flexible scheduling ensure minimal disruption to ongoing operations and training activities.
Start the conversation
Talk to the Clean-Air Team
For HVAC Hygiene advice and services, talk with our Clean-Air® Experts. Call our office on 07 3274 2833 or email sales@cleanairaust.com.au for info.Should we call you? Fill in the form to arrange a call back.







