What is an indication of potential hidden mold during an assessment?

Unusual odors in specific regions are a significant indication of potential hidden mold during an assessment. Mold often emits a musty or earthy smell, which can be particularly noticeable in areas where moisture is trapped or where mold growth is occurring out of sight, such as inside walls, under carpets, or in other concealed spaces. These odors can alert assessors to investigate further, as mold typically thrives in damp conditions that may not be immediately visible.

On the other hand, clear air quality readings might suggest that there is no active mold spores in the air at the moment of testing, but they do not rule out the presence of hidden mold, as mold could be localized in areas that do not affect air quality directly. Dry wall surfaces could also indicate the absence of visible mold, yet they do not guarantee that there isn’t mold hiding behind them, especially if there has been water damage in the past. A well-ventilated area is less likely to harbor mold due to better air circulation and reduced humidity, but it does not eliminate the possibility of hidden mold in less accessible areas. Thus, unusual odors serve as an essential clue for assessors to look more closely for mold that may not be readily visible.