- Four-stage purification system captures 99.97% of airborne particles as small as 0.3 microns, including pollen and other allergens, dust mites, mould spores, pet dander and cigarette smoke - AeraSafe™ Antimicrobial Treatment – built-in protection from the growth of odour causing bacteria, mildew and fungi on True HEPA filter - AeraSmart™ Sensor monitors the air quality and automatically adjusts the fan speed to keep your air purified. Blue, amber and red lights indicate the purity of your air - Aera+™ Mode is designed for peak allergy conditions and increases air flow by 50%* to remove allergens from your air - Filter Change Indicators let you know when it is time to replace your Carbon and True HEPA filters - Recommended for rooms up to 28m²