Molds are very small living organisms that are found indoors and outdoors. There are many different types of mold. Molds grow best in warm, damp, and humid conditions and can spread and increase in numbers by making spores. Spores help the mold to survive even in dry conditions. Molds are found year-round. Indoor mold may be found in places such as in bathrooms, kitchens, laundry areas attics. Reactions to molds vary by person but can cause allergic reactions and respiratory illnesses. Learn more about mold, how to prevent growth and how to clean mold below.