Your lab report will show the spore counts for each genus identified, usually reported as spores per cubic meter of air. The report may also provide comments on whether the results are considered “normal” or elevated based on reference data.

If indoor levels are similar to or lower than outdoor levels:

This is often considered a good sign. It suggests the indoor space is not a major source of mold spores—at least during the sampling window.

If indoor levels are significantly higher than outdoor levels:

This may indicate an active indoor source, especially if water-damage-related molds (such as Chaetomium, Stachybotrys, or Aspergillus) are found. In this case, further inspection or remediation may be needed.

If results are low but symptoms persist:

Consider additional testing methods like ERMI dust testing or surface sampling. Air testing alone can miss hidden or non-airborne sources.

Spore trap testing can provide meaningful data, especially when interpreted by someone with experience. It is most powerful when used in combination with other methods as part of a well-rounded investigation into environmental exposure.