Mold exposure can cause respiratory irritation, allergic reactions, and, in sensitive individuals, more serious health effects. Certain mold species, including some strains of Stachybotrys (commonly called black mold), produce mycotoxins that have been associated with more significant health impacts with prolonged exposure. Children, the elderly, pregnant women, and those with respiratory conditions or compromised immune systems are most vulnerable. Prompt professional remediation eliminates the exposure risk.