Indoor Air Quality and Commercial Building Ventilation
Ventilation brings outdoor air into a building and removes or dilutes indoor pollutants. Heating or cooling a room is not, by itself, evidence that the room is adequately ventilated.
Natural and mechanical ventilation
Natural ventilation uses openings such as windows and vents; mechanical ventilation uses equipment to supply or exhaust air. Commercial buildings may use a combination. Suitability depends on the design, use and operating conditions, not simply whether a window can be opened.
Identify potential pollutant sources
Indoor conditions can be affected by dust, moisture, cleaning products, building materials, outdoor sources and activities. Persistent odours or occupant concerns warrant a structured investigation rather than assuming the cause is dirty ductwork.
Maintain relevant air-handling components
Inspect the agreed components, including filters, coils, drains, fans, ducts and intakes. Visible deposits or moisture should be recorded and addressed. Cleaning does not replace repair of a leak or correction of a ventilation fault.
Use measurement carefully
Indoor air quality and airflow assessment should answer a specific question. Results depend on sampling location, timing and operating conditions; a single result is not a complete assessment of every space.
Keep maintenance evidence
AS/NZS 3666.2 addresses operation and maintenance of building air-handling and water systems for microbial control. It is not a kitchen exhaust cleaning standard or a guarantee against infection. Confirm the applicable edition, equipment requirements and site maintenance plan with the responsible maintenance professional rather than copying an online schedule. Keep the agreed scope, service date, before-and-after photographs, PDF report, inaccessible sections and recommended follow-up together. A service report documents the work completed; the insurer, auditor or relevant authority determines whether it meets their requirements.
Arrange a commercial service
Clean Air Filtration provides commercial HVAC duct cleaning in Melbourne and Victoria. Tell us your site location, system details, access restrictions and operating hours so we can discuss the cleaning scope. Call (03) 9303 9661 or email sales@cleanair.com.au.
Every client receives a client portal, including one-off services. Completed-service PDF reports and job photos are available there. See our service records guide for what to keep with your maintenance history.
Cover image: AI-generated editorial illustration of representative equipment or premises, not a client-site photograph.