Indoor Air Sciences CSMI 2025 – 400 Free Practice Questions to Pass the Exam

Question: 1 / 400

According to IICRC S520, what does achieving Condition 1 ensure?

All mold spores are eliminated

Presence of normal fungal ecology

Achieving Condition 1, as defined in IICRC S520, indicates the presence of normal fungal ecology in a building or environment. This condition suggests that the levels of mold and fungi present are within acceptable limits and are considered typical for the geographic area, meaning that there is no unusual presence of mold that would cause concern. Under Condition 1, while there may still be some mold spores in the environment, they do not pose a health risk or suggest contamination, as they are part of the naturally occurring fungal ecosystem. Thus, this state does not involve the complete elimination of mold spores, nor does it imply there is no visible mold growth or that occupants are guaranteed to be safe to return, since those factors can vary. Therefore, the statement that achieving Condition 1 ensures the presence of normal fungal ecology accurately reflects the definition and implications of that condition.

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No visible mold growth

All occupants are safe to return

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