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【3 STAGE FILTRATION SYSTEM】The advanced 3-stage filtration system combines the power of silver ion pre-filter, activated carbon filter, and HEPA filter into one. It removes 99.97% of dust, pollen, smoke, odor, mold spores, and pet dander, filters particles as small as 0.3 microns and larger and filters air pollution of PM 2.5, releasing up to 5,400,000/cm³ of negative oxygen ions.
【3-SPEED DUAL-BALL FAN】 This air purifier has 3 adjustable fan speed-low(sleep mode) /medium/high for better accommodating the needs of the room space. Besides, the dual-ball fan design, making the using life can last 45,000 hours, more durable.