portable Air Purifier With True Hepa Air Filtration Technology And Carbon Filters Office consist of three powerful filters that completely change the quality of air indoors. The air is sucked in, pulled through the mechanical filter, then the True HEPA filter, and finally through the carbon filter it is blown out into the room again without the harmful particles of dust, dander and pollen in it. Thanks to the use of True High-Efficiency Particulate Air (True HEPA) filters, these powerful pull in and contain as much as 99.7% of all microscopic particles floating around your home. The True HEPA Air Purifier is capable of eliminating harmful air molecules as small as 0.3 Micrometres in size from the air. Input 5V can work, low noise up to 22dB with sleep model, product power 0.5A, can be connected to the mobile phone power,10,000mAh mobile power can work for 10 hours. Small room air purifier with super 360degrees air inlet, half of the height of the fuselage, air filter to eliminate odor smoke pollen pet hair dander dust airborne in sortest time portable desktop air purifier weight light. for your travel and business trip Colour:White :ABS Size:186 x 195 x 308mm Package Contents: 1 x Air Purifier 1 x USB Cable Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.