Could mold under stairs cause my kids' coughing?« Back to Previous Page

Yes, mold under your stairs could absolutely be causing your kids' persistent coughing. The musty smell you describe is a clear sign of active microbial growth, and the black and green spots indicate a significant colony. When mold spores become airborne—which happens easily when you disturb items like those storage boxes—they are inhaled and can irritate the respiratory tract, leading to coughing, congestion, and worsened allergy symptoms, especially in children.

Given Dubai's high humidity and our reliance on air conditioning, which can recirculate contaminated air throughout the villa, this is a serious indoor air quality issue. The first step is to stop the exposure. Do not attempt to clean this yourself with store-bought sprays, as improper handling will aerosolize a high concentration of spores and likely spread the problem to other areas of your home.

For a situation of this visible magnitude, a professional inspection is strongly advised. The remediation process is not just about cleaning the surface mold you can see; it involves identifying and addressing the underlying moisture source that allowed it to grow, containing the affected area to prevent cross-contamination, safely removing the porous materials (like those clothes and likely the cardboard boxes), and using HEPA filtration to clean the air. After remediation, an independent clearance test, preferably from a company with its own microbiology lab, is the only way to verify the space is truly safe and the allergen load has been reduced to acceptable levels. This provides the concrete evidence you need for your family's health.