This compact and high-end Air Doctor Portable Air Purifier is designed for keeping the space free from bacteria, virus, fungus, etc. present within 1-meter radius. It contains natural inorganic substances as well as sodium chlorite for preventing the spread of virus. For the convenience of the users, it can be easily hanged on pocket, chest or any bag. It is based on Japanese technology that releases antimicrobial agent chlorine dioxide (ClO2) for offering complete protection and safety against varied airborne diseases like cold, influenza, flu, allergy, H1N1, and so on. This quality Air Doctor Portable Air Purifier is approved by international agencies such as US FDA, WHO, Occupation Safety and Health Administration and The Japan Ministry of Health, Welfare & Labor.