Mold belongs to a group of organisms called fungi (singular fungus). Mushrooms and yeasts are also fungi. The body of molds is made of filaments (thread-like structures or root-like). Mold is found everywhere. In indoor environment, mold is most often associated with damp, musty locations such as bathrooms, basements and attics. Mold produces by means of tiny spores (“seeds”) that float in the air due to their small size and weight. Everyday, we inhale thousands of these spores both indoors and outdoors.