When it comes to mold inspections, the biggest concerns are often the ones you can’t see. Air testing is a key component in detecting airborne mold spores and assessing the overall air quality inside a property.
What Is Air Testing?
Air testing, also referred to as air sampling, involves collecting indoor air samples to evaluate the type and concentration of mold spores present. These indoor samples are typically compared with outdoor air to determine whether spore levels inside the property are elevated or abnormal.
How Air Testing Works
During an inspection, a trained professional uses a calibrated air pump with a specialized collection device—commonly a spore trap cassette—to capture airborne particles. Samples are usually collected from:
- Living areas and bedrooms
- HVAC systems and vents
- Areas where moisture or mold is suspected
- An outdoor control location for accurate comparison
These samples are then sent to a certified laboratory, where they are examined under a microscope to identify mold types and quantify spore levels.
Why Air Testing Matters
Air testing reveals what a visual inspection alone may miss. It helps:
- Detect hidden mold growth behind walls, ceilings, or other concealed areas
- Identify elevated spore levels even when mold isn’t visible
- Evaluate indoor air quality and potential health concerns
- Provide documentation for real estate transactions or insurance purposes
This method is especially valuable when occupants experience symptoms like allergies, persistent musty odors, or respiratory irritation without a clear source.
