Adjusting airflow in an air conditioner involves optimizing the volume and distribution of cool air to maintain comfort and energy efficiency. Lowering the airflow with the thermostat's fan speed or adjusting louvers reduces energy consumption and minimizes humidity, while higher settings improve air circulation in larger spaces. However, excessive airflow can lead to uneven cooling and higher electricity usage. Users should balance comfort with the system's capacity, ensuring the evaporator coil remains dry to prevent mold growth.

Proper airflow adjustment is critical for maintaining air conditioner (AC) performance and longevity. According to the U.S. Department of Energy, correct airflow distribution can reduce energy consumption by up to 15%, as inefficient airflow forces the system to work harder. For example, a study by the American Society of Heating, Refrigerating, and Air-Conditioning Engineers (ASHRAE) found that rooms with optimized airflow maintain a consistent temperature (±1°F) compared to those with poor circulation, which can fluctuate by 5°F. Additionally, stagnant air increases humidity by 20%, fostering mold growth and reducing indoor air quality. The DOE estimates that proper airflow settings can extend AC lifespan by 10–15 years, avoiding costly repairs. Adjusting airflow via fan settings (low, medium, high) and louver positions ensures the evaporator coil operates at peak efficiency, reducing refrigerant strain and electrical load. This balance minimizes wear and tear while optimizing cooling performance.