LG LA-D1521PM is an air cleaner that helps to improve the air quality in your home. It features a polluted air checking sensor that automatically adjusts the airflow to remove pollutants and odours. The unit also includes a negative ioniser that helps to purify the air and remove dust and pollen. The LA-D1521PM is easy to use, with a simple control panel and a timer function that allows you to set the unit to turn off automatically after a certain period of time. The unit also comes with a washable dust collector that is easy to clean and maintain.