The Air10s portable air purifier is a unique device that produces 120 million ions per cm³. It has been tested by our group and protects against bacteria and pollution. Very useful when travelling by plane and public transport where fresh air is just a dream. Every day we meet people in the office, in public and private. Air10s creates virtual protection around the mouth and nose, blocking germs and bacteria to have contact with your respiratory system. It can also protect against pollution, which inhales the toxic aria. Working Voltage: DC 5V; Power: <1W; Current: <50mA; Battery Capacity: 750mAh; Charging Time: 3hs; Battery Life: 30H