Mold needs moisture, oxygen and an organic food source to grow and is capable of colonizing almost any surface. There are molds that grow on wood, paper, carpet, insulation and dust that gathers in moist areas. Mold growth comes in various colors and is often known as mildew.
Molds alter the look and smell of materials they grow on and can weaken wood framed buildings. Exposure to mold spores can cause allergic reactions and influence health. Allergic responses include a runny nose, red eyes, and asthma attacks.
Local and state sanitation laws prohibit mold growth in most places of business, and while the Occupational Safety and Health Administration does not have a standard for acceptable levels of mold or mold spores, the General Duty Clause requires employers to provide a workplace free of hazards.