Your AC pulls in room air, cools it and throws it back out. The filters in front catch dust and particles. Over time, especially in dusty cities, these filters clog. Airflow reduces, so the AC has to work harder to push the same amount of air. That means more noise, less cooling, and higher power consumption.
Professional servicing once or twice a year is important, but in peak season, a quick filter rinse every few weeks makes a big difference. For most split units, you can open the front panel, slide out the mesh filters, gently wash them with water, let them dry and put them back.
The unit breathes easier, cools more evenly, and your electricity bill thanks you. It’s a small DIY habit that supports the bigger maintenance work.