Smart Sensor Technology Smart Sensor technology does the work for you, reactively adjusting settings for optimal air quality in the room. Set and Forget Enjoy the ease of the Set and Forget, an Auto Mode feature which enables continuous filtration, eliminating airborne contaminants and odours. Sleep Mode Sleep soundly, thanks to Sleep Mode, which operates at a minimal noise level and disables lights whilst purifying air throughout the night. Three Fan Speeds If you do wish to make alterations yourself, select one of three fan speeds as desired, by navigating the control panel and LED indicator lights.