Indoor laundry drying and poorly maintained air conditioning systems can drive humidity levels high enough to support mold growth and contribute to lasting respiratory damage, physicians warned in newly published guidance.

The advisory cites the cumulative effects of chronic exposure to airborne fungal spores in homes where moisture is not adequately managed. Recommendations include regular cleaning and maintenance of AC units, ventilation during and after laundry drying, and prompt remediation of any visible mold growth.

The statement adds to mounting public-health attention on indoor air quality as a determinant of long-term respiratory and inflammatory health.