In air distribution systems, what is crucial for maintaining indoor air quality?

Regularly changing filters is crucial for maintaining indoor air quality in air distribution systems because filters are designed to capture dust, allergens, and other particulate matter from the air. When filters are dirty or clogged, they can no longer effectively trap these contaminants, leading to a buildup of pollutants within the indoor environment. This can degrade air quality, potentially causing health issues for occupants, especially those with respiratory conditions or allergies.

Additionally, clean filters help ensure that the HVAC system operates efficiently. Conversely, if the filters are not changed regularly, this can lead to increased energy consumption as the system works harder to push air through obstructed pathways. Thus, regular maintenance of filters directly impacts both air quality and energy efficiency, supporting a healthier and more comfortable indoor environment.