This guide is general information, not medical advice. If you have health concerns, please consult a medical professional.
What the lab reports
Spore-trap reports list spore types identified and counts per cubic meter of air for each sample, including the outdoor control.
Compare every room with the outdoor sample
Illustration only. Similar or lower than outdoors is generally expected; noticeably higher, or a different mix of spore types, points to an indoor source worth investigating.
Comparing indoor and outdoor
Because outdoor air always contains spores, results are commonly interpreted by comparing indoor samples to the outdoor control and looking at which spore types appear indoors.

The outdoor sample is your baseline. Every indoor number means more next to it.
AirCare 365 · Bay Area
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Why context matters
There are no federal limits for indoor mold spore levels. Results describe one moment in time and are most useful alongside moisture readings, visual observations and repeat samples. Your AirCare inspector explains results in plain language in your digital report.
Want measured information about your home?
AirCare 365 provides mold air sampling and mold and indoor air quality testing across the Bay Area.
Sources
Serving San Francisco, San Mateo, Menlo Park, San Jose, Sunnyvale, Palo Alto, Oakland, Fremont and the rest of the Bay Area.
Read next
- Mold Spores: What They Are, Where They Hide in Bay Area Homes, and How to Test for Them
- Signs of Mold in Your Home
- How to Test for Mold in Your House: DIY Kits vs Professional Testing
- How Much Does Mold Testing Cost in the Bay Area?
Looking for a visit? Explore Bay Area mold testing.

