Which method is typically used for testing a home’s ventilation effectiveness?

Using a smoke test is a widely recognized method for assessing the effectiveness of a home’s ventilation system. This method involves introducing a visible smoke (often from a smoke pencil or incense) into the ventilation system or specific rooms to visualize airflow patterns. Observing the smoke allows analysts to determine how well air moves through the space, identify areas of stagnant air, and spot leaks or unintended airflow paths.

Visualization is key in airflow assessments, as smoke provides immediate visual feedback about how air is circulating. If smoke flows freely throughout the space, it indicates good ventilation effectiveness. Conversely, if smoke is sluggish or does not travel as expected, this signals potential issues with the system.

While other methods mentioned can be useful in assessing overall indoor air quality or specific ventilation concerns, the smoke test stands out due to its straightforward applicability and immediate visibility of results during the evaluation process.