Why Indoor Air Quality Matters

We spend more than 80% of our time indoors. When ventilation is poor or contaminants are present, air quality can decline rapidly — leading to symptoms like headaches, fatigue, coughing, irritation, poor concentration, and in some cases, chronic respiratory conditions. For employers, poor IAQ can also result in lost productivity, increased absenteeism, and WHS liability.

Factors such as mould, VOCs (volatile organic compounds), CO₂ buildup, dust, combustion by-products, and poor ventilation can all compromise indoor environmental quality — often without obvious signs.

Our Services – Independent Air Quality Assessments & Reporting

We provide comprehensive indoor air investigations using calibrated monitoring equipment, NATA-accredited laboratory analysis, and detailed reporting aligned with national guidelines and best practice standards.

IAQ Monitoring & Testing

We assess a wide range of indoor air quality parameters, including:

• Carbon dioxide (CO₂) – A key marker of ventilation effectiveness

• Volatile Organic Compounds (VOCs) – From paints, glues, cleaning products, or off-gassing

• Particulate matter (PM2.5 and PM10) – Fine dust and combustion-related particles

• Temperature and relative humidity – Comfort, condensation, and mould growth potential

• Formaldehyde, ozone, and other chemical irritants

• Carbon monoxide (CO) – Where gas appliances or garages are present

We use portable real-time instruments as well as time-weighted sampling and laboratory testing, depending on the issue and location.

Mould & Microbial Investigation

If mould is suspected, we can conduct a focused investigation that includes moisture mapping, air and surface sampling, and evaluation of contributing factors such as leaks, HVAC issues, or poor building design. Results are interpreted in line with industry guidance and, where required, post-remediation verification can be arranged.

Workplace & WHS Compliance Support

For workplaces and public buildings, we provide IAQ assessments aligned with WHS obligations, Codes of Practice, and relevant standards such as:

• Safe Work Australia’s IAQ guidelines

• ASHRAE 62.1 and Australian Standard AS 1668.2 for ventilation

• Relevant exposure standards for contaminants of concern

We help organisations respond to health complaints, WHS enquiries, or insurer requests with confidence and credibility.

Common Situations We Investigate

We regularly assess indoor air quality in:

• Offices, classrooms, and open-plan workplaces with complaints of “stale” or “sick” environments

• Residential buildings with signs of mould, dampness, or odours

• Healthcare, childcare, and aged care facilities with high-sensitivity occupants

• Retail and hospitality venues where ventilation or odour complaints impact staff or customers

• New builds or refurbishments with lingering VOCs or formaldehyde off-gassing

• Post-flood or post-fire sites to verify air quality before reoccupation

Why Choose Confluence Environmental?

We are independent consultants — not affiliated with cleaning companies, HVAC contractors, or product sellers. That means you get unbiased advice, rooted in science and experience. Our reporting is clear, regulator-ready, and tailored to help you take the right next steps — whether that’s improving ventilation, reviewing HVAC operation, or carrying out remediation.

We combine expertise in occupational hygiene, indoor environmental quality, and building health to deliver well-rounded assessments that help you manage risk and protect occupants.

Where We Work

We provide indoor air quality consulting across:

• Greater Sydney and Western Sydney

• Central Coast

• Newcastle, Lake Macquarie & Hunter Valley

• South Coast, Mid North Coast, and rural NSW