Mold Factsheet

Here are some things you should know about mold:

Mold is a type of fungus. Other fungi include yeast and mushrooms.
Outside mold is found in soil, decaying vegetation, compost piles, rotting wood and fallen leaves. Outdoor mold can get inside through open windows and doors, ventilation systems and on pets, clothing and shoes.
Mold grows year round and in all types of climates although it favors a warm and humid environment.
Some people are more sensitive to mold than others. People who are allergic to mold, have asthma or have a weakened immune system are most likely to be harmed through mold exposure.
To grow, mold needs food such as high moisture levels, high temperatures and excess humidity.
Mold is a decomposer of organic materials such as wood, plants and animals.
Molds are strong allergens although most people are not allergic to them.
Common indoor mold include: cladosporium, penicillium, alternaria and aspergillus