Air Treatment Services in Sydney
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Following a mould remediation project, visible contamination is gone, but microscopic airborne spores often remain. These particulates, easily disturbed and circulated, can recolonise damp surfaces or degrade indoor air quality. Our service focuses on this final, critical step: using HEPA (High-Efficiency Particulate Air) scrubbers to capture the residual airborne spores common in Sydney properties, such as Aspergillus and Penicillium.
This is not a standalone “fix” for a mould problem. It is a targeted, post-remediation process recommended only after the moisture source has been repaired and all visible mould has been physically removed according to IICRC S520 standards.
Managing Airborne Spores After Mould Removal
Sydney’s humid subtropical climate creates an environment where mould spores thrive. After a water leak or during periods of high humidity common in coastal suburbs from the Northern Beaches to the Eastern Suburbs, spore counts can become elevated. Physical remediation, while essential, can aerosolize millions of these spores.
Our air treatment service addresses this by establishing controlled air filtration, drastically reducing the concentration of airborne particulates. We document outcomes with the goal of bringing indoor spore counts to within levels considered normal for a non-water-damaged building under the Australian Mould Guideline. For example, a key target is reducing airborne Aspergillus/Penicillium levels to below 200 c/m3, a common post-remediation verification benchmark.
Our Air Scrubbing Technology & Methodology
We do not use undersized residential air purifiers. Our technicians deploy commercial HEPA air scrubbers, such as DefendAir HEPA 500 or ThorAir units, which are industry standard for water damage restoration. Key capabilities of our equipment:
Three-Stage HEPA Filtration
Our units use a multi-filter system that captures particles down to 0.3 microns with 99.97% efficiency. This is critical for trapping common mould spores, which typically range from 2 to 20 microns.
Negative Air Pressure
In many situations, we use ducting to create negative air pressure. This prevents cross-contamination by ensuring airborne particulates from the affected area are contained and filtered, rather than spreading to other parts of your home or business.
Calculated Air Changes
We calculate the volume of the room (cubic metres) to determine the number of air scrubbers needed to achieve multiple air changes per hour (ACH), ensuring all air within the space passes through the HEPA filters several times.
When is Air Scrubbing Necessary for Sydney Properties?
We only recommend air scrubbing when supported by findings from a professional mould assessment. It is not a substitute for remediation. This service is most critical in the following scenarios:
Post-Remediation Verification
After mould removal in homes, especially older terrace houses in the Inner West (Leichhardt, Balmain) known for subfloor moisture issues.
Following Water Damage
After a significant water ingress event (e.g., burst pipe, flood) where materials have been saturated for over 48 hours.
Identified Elevated Spore Counts
When pre-remediation air sampling confirms high concentrations of airborne spores that require management.
For Sensitive Occupants
In properties occupied by individuals with respiratory conditions, allergies, or compromised immune systems, where achieving lower particulate counts is a priority.
Air Treatment & Air Sampling: Understanding the Difference
It’s a common point of confusion, so we want to be clear:
Air Sampling
is a diagnostic test. It involves collecting air samples on a culture plate or cassette to measure the types and concentrations of mould spores present in the air. It tells you if a problem exists.
Air Treatment (or Air Scrubbing)
is the solution. It is the active process of using HEPA-rated machinery to physically remove airborne contaminants after the source has been dealt with. It is designed to reduce the spore levels identified during sampling.
Air Treatment FAQs
What is Air Treatment?
Air treatment involves the use of specialised equipment and controlled methods to reduce airborne contaminants within indoor spaces. This process targets mould spores and other particulates suspended in the air rather than visible surface contamination.
Does air treatment remove mould from surfaces
No. Air treatment targets airborne contaminants only. Visible or embedded mould requires separate removal or remediation.
Is air treatment the same as air sampling?
No. Air sampling measures airborne mould spores, while air treatment is used to reduce airborne contamination when elevated levels are identified.
Is air treatment always required for mould issues?
Not always. Air treatment is recommended in specific situations based on inspection and testing findings.
Book Your Post-Remediation Air Quality Service
If you have completed a mould remediation project based on a professional inspection and require final air clearance, contact our team. We provide HEPA air scrubbing services for residential and commercial properties across Sydney.
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