Failing to clean your aircon regularly results in a gradual decline in cooling performance, as accumulated dust and debris block the evaporator coils and reduce the unit’s ability to absorb heat from the room effectively. Over time, the restricted airflow causes the compressor to overwork, leading to higher electricity consumption, overheating, and eventually mechanical failure that can be expensive to repair or may require full unit replacement. Mold and bacteria that thrive in the warm, moist interior of a neglected aircon are also blown into the room every time the unit runs, posing health risks particularly for children, elderly household members, and anyone with asthma or allergies.