Air Sampling (Mold spore testing)

Air sampling is one of the most effective ways to evaluate potential mold issues when growth isn’t visible.

Even in the absence of visible mold, airborne spores can indicate hidden moisture problems or conditions that may be affecting indoor air quality.

(If your concern is more related to dust, debris, or general air quality rather than mold, indoor air quality testing may be a better fit.)

During the inspection, we use professional equipment to draw a measured volume of air through a specialized cassette that captures airborne particles.

The sample is then analyzed by an independent laboratory to identify:

• Types of mold spores present
• Relative concentration levels
• Whether indoor conditions differ from typical background levels

Air sampling can provide useful insight when:

• Mold is suspected but not visible
• Musty or unusual odors are present
• Moisture issues may be hidden (behind walls, under flooring, HVAC systems)
• Documentation is needed for a real estate transaction

In some cases, an outdoor reference sample may be collected to provide a baseline for comparison.

Air sampling may be helpful if:

• You notice musty odors but see no visible mold
• The property has experienced recent leaks or water damage
• You have unexplained allergy or respiratory symptoms
• You want additional clarity about indoor air conditions

Air sampling is a tool—not a one-size-fits-all solution.

We recommend it when it adds meaningful information to the inspection, and we avoid unnecessary testing when it doesn’t.

Our goal is to provide clear, accurate results you can actually use—without overcomplicating the process.

Not sure if air sampling is the right approach?
Learn how we determine when testing is recommended.