Mold thrives in damp and dark environments. Air ducts are both moist and dark. Unfortunately, since the inner parts of the ducts are out of sight, mold spores often go undetected for many years. So, how do you know, then, if you have black mold growing in your air ducts?
Due to the constant change in humidity levels in the ducts, HVAC systems are the ideal breeding ground for mold. Humidity levels change as owners alternate between the AC and the heater. The AC blows the mold spores into the air where they eventually rest in the ducts and have a non-visible environment to incubate.
As mentioned, the mold is out of sight. You may, however, experience the common respiratory symptoms associated with mold growth. These are wheezing, eye irritation, throat mucus, migraines, and skin inflammation. Even then, most people just shake these off as common spring/summer allergens.
The only way to confirm mold presence is through a professional inspection that accompanies a routine furnace and air duct cleaning.
If the mold is out in the open, then you can treat the infestation yourself using a homemade mixture of chlorine bleach and water. Unfortunately, since the inner ducts are inaccessible to the homeowner, you’ll need to rely on professional treatment. In some cases, the growth may also extend to the insulation. You will need to replace the material in this instance.
Call Aurora Edmonds Furnace Cleaning for an annual duct maintenance. This is the single best advice for preventing mold growth in the first place. Do not overlook the possibility of black mold in air ducts simply because you don’t see it. Out of sight does not mean out of mind.
Edited by Justin Vorhees
Serving Seattle, Tacoma, Everett, Bellevue, King County
and South Snohomish County