Features: This negatives ionic air purifiers with ozones purification technology effectively removes pollutants, odors, featuring European standard compliance and a built in battery for portable use. Crafted from ABS, it offer multiple operations modes including automatic, manual, and sleep settings, with a filter less design for easy maintenance and continuous air cleaning. Ideal for families, allergy sufferers, and individuals in homes or offices seeking cleaner indoor air quality and enhanced health benefits. Perfect for daily use in bedrooms, living rooms, or small spaces to combat dust, and pet, ensuring cleanly air during sleep or work hours. Enjoy sustainable purification with its energy efficient performances, providing ozones and negatives ionic functions for long lasting freshness and improved well being. Specifications: Component:ABS Color:White,Gray Size:Approx.50mm/1.97''x90mm/3.54'' Power:2.5W Active oxygen content:120mg/h Charging voltages: AC110-240V Standard:EU Negatives ionic concentration: 28 million Executive Standard: GB28232 Working principle: Negatives ions, ozones Package Includes: 1Set Air Purifiers note: Please allow 1mm errors due to manual measurement. Due to the differences between different monitors, the picture may not reflect the actual color of the item.