LG LA-D1520PM air cleaner is here to improve your indoor air quality and make breathing easier for you and your family. With its advanced features, it helps remove dust, pollen, and other pollutants from the air. The auto airflow function adjusts the airflow speed based on the pollution level, while the negative ionizer releases negative ions to freshen up the air. The filter cleaning indicator reminds you when it's time to clean the dust collector, ensuring optimal performance.