It makes sense that your heating, ventilation, and air conditioning (HVAC) system can contribute to indoor air issues. Almost all of the air inside your building travels through this system of equipment and ducts.
The EPA cites microbial growth in the HVAC system as one of four primary sources for indoor air pollution. The EPA specifically identifies “microbiological growth in drip pans, ductwork, coils and humidifiers” as the source for allergic reactions building occupants may suffer.
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Mold in Your HVAC System?
Your heating and ventilation system can spread mold spores through the entire building. The EPA is concerned by this and specifically advises building managers to “not run the HVAC system if you know or suspect that it is contaminated with mold”. (from the HVAC section of the EPA’s publication “Mold Remediation in Schools and Commercial Buildings”)
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