The Surround 360° Air Intake Technology swiftly captures bacteria, dust, allergens, and odours from all directions, delivering clean and pure air. The Air Purifier can remove 99.97% dust & particulate matters as small as 0.1 μm. Inside it has integrated filter having Pre filter, Activated Carbon Filter, True H13 HEPA filter. True HEPA H13 Filter Removes ultra fine particles like pollen, mold & microbes as small as 0.1 μm. Activated Carbon Filter Removes carbon and absorbs odours, VOCs & cigarette smoke. Ideal For Bed Room up to 200 sq. feet. CADR 150 m3/Hr - As per AHAM standards for fine dust particles. Silent operation with noise level < 55dB(A). Fan speed can be changed low, medium & high. Timer setting can be done for 2,4,6 Hrs.