Activated mould air testing offers a more accurate and representative assessment of mould presence. It is better compared to passive air testing. This is because it actively draws a measured volume of air through a collection device. This process captures airborne mould spores and fragments efficiently over a specific time frame. It provides quantitative data that reflects the current indoor air quality.

Since mould spores are often unevenly distributed and may settle on surfaces, passive testing, which relies on spores naturally settling onto collection plates, can miss transient or low concentrations of spores in the air. Activated testing overcomes this limitation by sampling a larger air volume, thus increasing the likelihood of detecting mould spores even at low levels.

Additionally, air mould testing can help find hidden mould that is not visible to the naked eye. Mould often grows inside walls, under floors, or in ventilation systems, releasing spores into the air. By analysing the air quality, activated mould testing can identify these hidden sources, enabling timely remediation before structural damage or health issues arise.

Moreover, activated air testing allows for controlled and repeatable sampling conditions, which enhances the reliability and comparability of results. It can be conducted during various activities or times of day to capture fluctuations in mould spore concentrations caused by environmental changes or human activity. In contrast, passive testing is subject to environmental variables like air flow and settling rates, which can lead to inconsistent and less representative results.

Consequently, activated air testing is preferred in mould investigations as it provides a more comprehensive understanding of mould contamination and helps guide more effective remediation strategies.