Mold is a type of fungus that grows in damp and humid environments, often appearing on walls, ceilings, and other surfaces exposed to moisture. Prolonged exposure to mold may cause unpleasant odors, property damage, and potential health concerns such as allergies or respiratory irritation. Mold testing is the process of identifying the presence, type, and concentration of mold in an indoor environment through air or surface sampling. Professional mold testing helps determine the source of moisture problems and guides the appropriate cleanup and remediation process. Regular inspection and prompt action can help maintain a safer and healthier living or working environment.