Advanced 3-stage filtration system: pre-filter, true HEPA filter and high-efficiency activated carbon filter can capture allergens, pet hair, dander, smoke, odor and large dust particles, and can also remove air as small as 0.3 MicrometreUltra-quiet operation: filter the air, with the lowest noise, as low as 25dB, creating a quiet and soothing indoor environment to help you deep sleepSuitable for studio, bedroom, office desktop, car, kitchen, house pets and other small areas.360 degree air inlet and outlet design, purify the air in all directionsOur air purifier with USB cable is suitable for many occasions in small spaces, such as corridors, bedrooms, studios, cars, kitchens, pet rooms. It can be powered by adapter plug (USB interface), USB socket, notebook, mobile power supply, etc.Product name: Negative ion air purifierProduct model: HCC-K01Power cord length: 1 meterWorking current: 300mAcolour: blackMaterial: ABSSize: 13.2x7x7cmPackage Contents:1 x Air purifier1 x USB cableOnly the above package content, other products are not included.Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.