What is the function of air filters in an A/C system?

Air filters in an A/C system primarily serve to trap dust, dirt, and other debris, which plays a crucial role in maintaining indoor air quality. By capturing particulate matter as air circulates through the system, filters prevent these contaminants from entering the living spaces. This function not only enhances the air quality but also protects the internal components of the air conditioning system, such as the evaporator and condenser coils, from becoming clogged or damaged.

Regularly replacing or cleaning these filters is vital for optimal A/C performance. A dirty filter can restrict airflow, leading to reduced efficiency and increased energy consumption. It can also result in the A/C system working harder to cool the space, which may shorten its lifespan. Thus, the primary function of air filters aligns closely with promoting better air quality in homes and workplaces while safeguarding the efficiency and longevity of the A/C system.