Skip to main content

Mold Air Sampling

Lab-analyzed indoor air quality test for mold spores. Recommended whenever you see water staining or smell mustiness.

Mold Air Sampling for Utah Properties

Mold air sampling collects spores from indoor air using a calibrated pump and impaction cassette. The cassettes are sealed and sent to an accredited microbiology laboratory, where a microbiologist identifies and counts spore types under a microscope. Indoor counts are compared to an outdoor control sample taken on the same day so we can tell whether what's indoors is normal background mold or something elevated and concerning.

Air sampling is most useful when you suspect mold but can't see it directly — musty odors, recent water damage, recurring respiratory irritation, or visible water staining without an obvious mold colony.

$250per sample location
Air sampling pump with impaction cassette set up in living room

What's Included

Every OnSite mold air sampling test compares indoor spore counts to an outdoor baseline — the only way to know if levels are truly elevated.

Indoor + Outdoor Control Sampling

Two indoor samples plus a same-day outdoor control so we can compare against true environmental baseline.

Accredited Lab Analysis

Cassettes shipped to an accredited microbiology lab for analysis under polarized light microscopy.

Spore Counts and Types

Lab identifies and counts each spore genus — Stachybotrys, Aspergillus, Penicillium, and others.

Written Report With Interpretation

Plain-English interpretation of whether levels are normal background or elevated, with next-step recommendations.

Frequently Asked Questions

Everything Northern Utah homebuyers want to know about mold air sampling.

When you smell mustiness, see water staining without obvious mold growth, have had a recent leak or flood, or experience recurring respiratory irritation in the home. For visible mold colonies, surface testing or simple visual identification is often more useful — air sampling is best when something feels off but you can't pinpoint the source.

Ready to schedule?

Book a mold air sample alongside your inspection or as a standalone service. We'll confirm within a few hours.