Combats viruses & allergies, four-stage purification system which removes 99. 97% of airborne pollutants, recommended for rooms up to 8m?, Filter Change Indicators signal when the filters need replacing, user friendly touch screen display panel effectively communicates machine performance. *** CLEARANCE ITEM - LIMITED STOCK AVAILABILITY AT THIS PRICE *** The air inside your home or office can contain up to 5 times more air pollution than the outdoors. Combat this invisible problem and improve air quality with a Fellowes air purifier featuring PlasmaTrue ? technology which safely removes 99. 97% of airborne pollutants as small as 0. 3 microns, including pollen and other allergens, dust mites, mould spores, pet dander and cigarette smoke. The AeraSmart ? Sensor monitors the air quality and automatically adjusts the fan speed to keep air purified. Blue, amber and red lights indicate the purity of the air around you. This new range of Air Purifiers also boasts the Aera+ Mode ? which is