NEGATIVE OXYGEN ION PURIFICATION8 million negative oxygen ion purification technology, multi-layer composite filter filter, smoke, PM2.5. SIMPLE OPERATIONStart with the car, one-button touch switch, blue atmosphere light, add romantic atmosphere and show more sense of technology. HIGH WIND SPEEDPowerful turbine fan, low power consumption, long life, high wind speed, low noise, and more effective air purification. USB PORT5V USB input TYPE C interface, can be connected to computer, mobile phone charging head, desktop office use, refreshing, bedroom study use to create an atmosphere. DURABLE MATERIALAluminum alloy body and ABS material design, the aluminum alloy surface is sandblasted and oxidized, which is more durable. Specification: Material: aluminum alloy+ABS Color: grey, silver Size(approx): 170 x 66mm/6.69 x 2.6inch(height x dia) Rated voltage: DC5V 1A Rated power: 2W Negative ion concentration: 8 million Purification method: filter + negative ion + aromatherapy Screen size: 76 x 58 mm/2.99 x 2.28inch(height x dia) Filter composition: H12 sandwich carbon cloth composite filter Usable area: 3-8m Package: 1 pc x Air purifier 1 pc x Type-c power cable 1 pc x User manual Note: 1. Due to the light and screen difference, the items color may be slightly different from the pictures. 2. Please allow 0.5-2 cm differences due to manual measurement.