What is an important preventive strategy for mold growth in HVAC systems?

Regular inspection and cleaning of filters is a crucial preventive strategy for mold growth in HVAC systems. Filters play a vital role in maintaining air quality and preventing contaminants, including mold spores, from circulating through the system. Over time, filters can accumulate dirt, dust, and moisture, creating an ideal environment for mold to thrive. By routinely inspecting and cleaning or replacing filters, you help to ensure that the HVAC system functions effectively and reduces the risk of mold growth. This practice also enhances the overall efficiency of the system, contributing to better indoor air quality and comfort.

In contrast, increasing temperature settings may inadvertently allow for higher humidity levels, which can promote mold growth. Minimizing fresh air intake can reduce ventilation but does not address the underlying moisture and contamination issues within the system, and can lead to stale air. Reducing system efficiency would be counterproductive to preventing mold, as efficient operation is key to controlling humidity and maintaining air quality.