While you may have spotted it on the edge of your shower curtain or an old loaf of bread, no one wants to imagine mold inside their HVAC systems. If you use central heating and cooling, you may be breathing in spores that are contaminating your indoor air. If you want to know why this happens and how to prevent it, learn more in this guide.

Why Does Mold Grow in HVAC Systems?

There is almost always some percentage of water vapor in the air we breathe, but the amount can vary depending on the location and the season. For example, areas near bodies of water such as oceans, lakes, and swamps will have more humid air. While winter brings dry, cold air, moisture levels go up with the arrival of spring. Even the fixtures we use inside our homes, such as showers and sinks, can increase humidity levels.

As humid air travels through your living space, it’s pulled into your HVAC system’s ductwork, attaching to the inside of its passageways. Since ducts are narrow and dark, they make perfect breeding grounds for mold growth when moist. When mold and mildew form in these ducts, your air conditioning unit will send it circulating throughout your home, contaminating your air supply and posing a risk for respiratory problems.

How Can I Prevent Future Mold Growth?

To minimize humidity, you can use a dehumidifier. You can also clean your filters and install an air purifier to reduce the number of allergens in your home.

To prevent mold in HVAC systems, switch your central AC for wall-mounted ductless units. This way, you’ll no longer rely on moist channels behind walls and above ceilings to deliver cool air. Instead, each room or zone of your house will have its own unit, eliminating those dark, cramped hallways that spores inhabit. 

If you want to make the switch to ductless HVAC systems, call New England Energy Concepts of North Dighton, MA. For over 28 years, they’ve provided electrical and cooling & heating services to southeastern Massachusetts, the Cape, and Rhode Island. They are currently offering a deal that gives you up to $500 back on the installation of ductless Mitsubishi Electric® units to cool your home safely and efficiently. Visit their website to learn more about their services, or call (508) 509-2711 to schedule an installation.