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How to Prevent Mold from HVAC Systems? Guidelines by HVAC Company Colorado Springs

Mold may easily develop in an atmosphere high in moisture and organic material, with temperatures ranging from 32 to 120 degrees. Unless you take precautions to prevent moisture and “mold food” from building in the system, your heating, ventilation, and air conditioning (HVAC) system can offer such circumstances. Furthermore, firstly you have to understand the leading causes behind mold growth advised by an HVAC Company in Colorado Springs.

Causes that Lead to Mold in HVAC Systems 

The following are the most common reasons for mold development inside HVAC equipment: 

  • Humidity 
  • Condensation Poor 
  • Ventilation


Excessive humidity levels in your home are the leading cause of mold growth in both the HVAC system and the house itself. 

Summer months are often when natural humidity is at its peak, although moisture concerns in the house occur all year. 

Excess humidity induced by showers and baths, washing machines, and other equipment is included.


As your HVAC systems are running, condensation forms in the air ducts owing to moisture in the air. While it naturally eliminates moisture from the air, the cooling process generates a lot of condensation. Condensation normally drains away from your home via the condensate drain pan and condensate pipes, but when these fail or clog, moisture cannot escape and backs up.

Poor Ventilation

Poor ventilation causes pockets of stagnant damp air to collect within your house. Because of insufficient ventilation, any steam or evaporating water in your air causes extra humidity that cannot be cycled out. These problems frequently occur when bathroom exhaust fans and range hoods are not operated properly or have failed.

How to Prevent Mold from HVAC Systems? 

Below are essential tips to prevent mold in HVAC systems:

Maintain the drain pans.

Standing water will build in the drain pans if the drain pans are not slanted and cleaned regularly. Mold will grow due to the water and bacteria in the drain pans.

Change air filters regularly.

Mold spores and other impurities are ineffectively trapped by wet and unclean air filters. If you don’t change the filters regularly, generally once a month, these particles will pollute your HVAC system.

Use an HVAC mold inhibitor.

Mold and mildew development in your HVAC system may be prevented by using EPA-registered, HVAC-approved mold inhibitors. Following the HVAC Company in Colorado Springs recommendations, apply the inhibitor to all components of your heating and cooling device.

Use a disinfectant.

Before applying the mold inhibitor to your HVAC system, you must first disinfect it. Search for a disinfectant that has been authorized by the EPA and is labeled for use in HVAC systems.

Keep the ducts dry.

Certain ducts in the HVAC system may contain more moisture and mildew than others. Check your HVAC system to see which ducts are the most affected. Ducts should be cleaned and repaired, and water-damaged components should be replaced.

Examine the air intakes.

Microbes and pollutants will be transported into your HVAC system through air intakes located near regions where organic materials gather. Keep the areas below air intakes clean by moving dumpsters and removing standing water and bird droppings, among other things.

M3 Mechanical How to Prevent Mold in HVAC Systems

¬†Don’t let mold in your HVAC system or its components compromise the health and comfort of your family! M3 Mechanical – an HVAC Company in Colorado Springs provides a variety of options to assist homes in managing indoor humidity and moisture levels to avoid mold formation in HVAC systems. Call us now to consult with one of our NATE-certified HVAC specialists about the best option for your house.

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