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As the result of a 1989 study, the US Environmental Protection Agency (EPA) found that our exposure to some air pollutants can be up to 100 times greater indoors--where most of us spend about 90% of our time--than outdoors. The EPA now classifies IAQ as one of our most important environmental concerns.
he Centers for Disease Control and Prevention places air pollutants into one of three general categories:
PARTICULATES: Common indoor air particulates include dirt, dust, fibers, tobacco smoke particles, and fireplace or wood stove soot.
BIOAEROSOLS: Examples of bioaerosols are dust mite and insect remains, pollens, pet hair and dander, bacteria, molds, and fungi.
OLATILE ORGANIC COMPOUNDS: (VOCs) can be the result of
Dirty HVAC systems can be an ideal breeding ground for microbial growth. Mold and fungal growth is a particular problem in high moisture areas, like the drain pan and A-coil, homes with moisture problems, and in hot, humid climates. Each time the HVAC fan cycles, potentially harmful spores--along with other allergens and pollutants--can be propelled through the supply ducts and spewed into the air we breathe.
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Regulated by The Texas Department of Licensing and Registration
