Mold is one of many types of fungus. Mold is a living organism that can exist in many shapes and colors, living both indoors and outdoors. Molds live in moist environments and the multiply or reproduce by using lightweight spores, capable of moving through air. We come in contact with mold every day, mostly unaware of is presence. Most mold is harmless in small amounts; however, when they find a damp spot in your home, they can easily reproduce. When spores are inhaled, it can lead to sickness.