Purify Rooms Large and Small LG AeroTower provides purified air where and when you needit, with multiple airflow options and coverage for large rooms up to 818 sq. ft. Particular About Particles The PM 1.0 Sensor continuously monitors and detects contaminants one micron or smaller in diameter ( PM1.0). Air quality rating is displayed on LCD display. Clean Airflow Customized for Any Room Choose direct, diffused or wide airflow to customize yourair flow in any room. Purified Air to Help Keep You Cool Choose from 10 fan speeds, plus oscillation settings to bump up the air movement. Easy-Reach Controls Simple, intuitive controls on top of the tower let you easily adjust settings without having to bend over to see and reach--or use the remote control or ThinQ app to take control without getting up.