A warm home is the perfect sanctuary from the cold, dry outdoors, especially if your humidifier has been hard at work. But if the humidifier lives in your air ducts, there is a chance that mold spores reside there as well.

In-duct humidifiers and mold

While not all in-duct humidifiers can cause mold, they increase the likelihood of mold spores developing in your air ducts. Mold grows in humid areas, so if an in-duct humidifier is set above 45% your ducts could be at risk for mold. Even if you don’t have your in-duct humidifier set that high, moisture can get trapped by dust and debris in your ducts and condense on the walls of your air ducts, promoting mold growth.

Once mold is in your air ducts, it can easily spread. Whenever you turn on the furnace or air conditioning, mold spores can get blown out of your ductwork and end up on other surfaces in your home. If the mold lands in areas in your home with high moisture concentration, like in bathrooms or windows covered in condensation, the mold can start to grow outside of your air ducts and be even harder to remove. Long term exposure could lead to aggravation of mold allergies, prolonged cold symptoms, and in the case of toxic molds, serious medical conditions like memory loss and muscle cramps can occur.

How we can help

Whether you want a preventative air duct cleaning or suspect you have mold in your ductwork that you want eradicated, our technicians can help keep your home mold-free.

  • Preventative Cleaning. An air duct cleaning and sanitizing is the best way to stop mold spores in their tracts. Our air duct cleaning technicians vacuum all of the debris out of your ducts, including dirt, dust mites, allergens, and loose mold spores. After your ducts are clean, we can apply a sanitizing spray that kills any remaining pathogens and mold on contact, leaving your air ducts mold free.
  • Mold Remediation. If your home smells musty, your family is experiencing an asthma or allergy flare-up, or you see mold growing, we can help. Our highly trained mold specialists can test, inspect, and remove mold. We use state-of-the-art technology to safely remove mold from your home before it causes further damage.


Are you ready to learn more about how Enviro-Air can help you? Call today to schedule your duct cleaning or mold testing.