What is a consequence of not changing air filters regularly?

Not changing air filters regularly leads to reduced airflow within the HVAC system. When filters become clogged with dust, dirt, and other debris, they obstruct the passage of air. This restriction can cause the system to work harder to maintain the desired temperatures, which not only affects comfort levels but also places additional strain on the entire HVAC system. Over time, this can lead to increased wear and tear on components, potential system failures, and higher energy costs due to decreased efficiency.

In contrast, options that suggest improved HVAC performance, lower energy consumption, or enhanced indoor air quality are not accurate consequences of neglecting filter changes. Regularly changing filters is essential to maintain optimal airflow, which is critical for the efficient and effective operation of heating and cooling systems, ultimately supporting better performance and energy efficiency.