A state of art HEPA air purifier for coverage up to 529 sq.ft. with 6-stage air purification technology that includes pre-filter, HEPA filter, anti-bacterial filter, activated carbon, Cold catalyst oxidization and ionizer. Ideal for homes, hospitals, guest houses, small offices, hotel rooms and doctor chambers. Helps keep indoor air free from dust (PM2.5, PM10), gases, smoke, bad odour, allergens and air-borne infectants. Dimensions of filters : Anti-Bacterial Filter size: 360 x 275 x1.1 mm; Activated Carbon and PCO Filter size: 360 x 270 x13 mm. HACI Technology is ASEAR unique air purification technology which focuses on Removing various pollutants present in the environment. There are various pollutants in the air that impact human health varying from gases, particulates, bacteria, virus, smell, smoke and other harmful suspended particles. A single filtration technology cannot eradicate all pollutants in the air