Things to Know About Biofilm in HVAC Systems
Keep coils clean for efficient heating and cooling. Schedule yearly maintenance to prevent biofilm buildup and install ultraviolet lights to kill bacteria. Replace air filters every 30 days to maintain indoor air quality, avoiding mold-prone disposable types.
Biofilm forms when free-floating microorganisms adhere to a surface. In an HVAC system, coils and other moisture-filled areas where dirt and dust usually accumulate present an ideal breeding ground for microbial growth. This post discusses the effects of biofilm in HVAC systems and shares tips for preventing or eliminating it.
Effects of Biofilm
Biofilm is often found in industrial environments and can plague some mechanical systems. The buildup of slimy microorganisms in heating and air conditioning systems can affect the flow of heat across a surface. It can also contribute to the premature corrosion of the surface and the spread of bacteria, viruses, and mildew throughout living spaces.
How to Eliminate or Prevent Biofilm
Keep coils clean. Routine heating and cooling services are essential to maintain the cleanliness and efficiency of air handlers. When biofilm builds up on the coils, the unit will require more energy to adequately heat or cool the interior space. Schedule a maintenance visit at least once a year so that contaminants won’t have the chance to accumulate and go directly into the air. Installing ultraviolet lights over the coils is another useful way to kill bacteria and other harmful organisms.
Replace air filters regularly. Changing air filters on a regular basis is essential for maintaining good indoor air quality. As a general rule, filters should be replaced every 30 days. Many disposable filters, like cotton-blend filters in cardboard frames, can become food for mold and bacteria over time, so it’s better to avoid these.
Fix My Air DFW of Fort Worth specializes in residential and commercial HVAC services, including routine maintenance, installation, and repair. All makes/models. Call us at (817)839-3511.
