CMR Practice Questions - Council-certified Microbial Remediator Exam

The ANSI/IICRC S520 Condition 3 classification applies when which situation is present?

Mold spore counts indoors are identical to outdoor reference samples. There is actual mold growth — visible colonies, hidden growth, or active amplification. Settled dust contains mold spores but no surface growth is visible. A clearance test detects trace spore counts below action-level thresholds.

Correct Answer:

There is actual mold growth — visible colonies, hidden growth, or active amplification.

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