Molds are types of fungi. Tiny particles of molds are found everywhere in indoor and outdoor air. In nature, molds help break down dead materials, and can be found on plants, foods, dry leaves, and other organic material. Molds are also very common in buildings and homes. Mold needs moisture to grow. Indoors, mold growth can be found where humidity levels are high.

Molds release thousands of microscopic cells called “spores”, which are lightweight, easily airborne and spread to surrounding areas through the air. Mold growth on surfaces can often be seen as a colored spot, frequently green, gray, brown, black or white. It commonly appears as a powdery, fuzzy, or hair-like material. Actively growing molds typically produce odors, sometimes described as earthy, moldy or mildew. The spores must have both food and moisture to actually start growing, similar to plant seeds.

Photo shows different types of Mold Growth on Agar Plate