Description: Purify more than 3 million negative ions in the air: purify formaldehyde, smoke, pm2.5, viruses, etc. in the air. A large area of filter element and purification layer can improve the air quality and make the air cleaner. Silence technology, no noise in the whole process, safe, energy-saving, environmental protection. Compact structure, easy to carry, very suitable for cars, bedrooms, bathrooms and other places. Specifications: Color: white Size: approx. 60*60*132mm material: Plastic Working voltage: 5v Working current: 260ma (maximum) Use area. ≦ 10m ³ Negative ion concentration. 300W Package includes: 1 x host 1 x data cable 1 x manual Note: 1. Please allow 0.5-1cm error due to manual measurement. 2. Due to the difference between different monitors, the picture may not reflect the actual colour of the item. Thanks for your understanding!