Do you feel safe when you breathe in the metro, train, airplane while seating or standing next to someone might be infected by epidemic viruses like flu, MERS? Do you feel comfortable with the air pollutants while doing your outdoor activities? Do you feel frequently fatigue, headaches, or seasonal depression? All of the questions are related with negative ions. With the amount of pollution our world is facing, it has become more and more important to attempt to live a healthy life. The air we breathe in contains a lot of virus, bacteria, dusts and pollutants, which may lead to general poor health and slowly developing breathing issues. In addition, computer terminals, electric appliances, fluorescent lighting, forced air ventilation systems, and modern building materials generate an over abundant positive ions. Positive ions make us feel tired, depressed and irritable. In order to breathe fresh air in our daily life, we need an air purifier with a highly qualified level of filter, HEPA. In addition to balancing our body's ionization, we need to take more negative ions through our respiratory organs, skin and lungs to be transported to the entire body through the blood. In order to satisfy the conditions, a wearable air purifier combining HEPA filter system and negative ion generator is demanded. The Wearable Air Purifier has a HEPA filter classified as H12 class which has 99.5% removal efficiency for larger than 0.3 micron size particles. The HEPA filter can remove most of Ultrafine Particulate Matter level dust defined as PM2.5, 2.5 micron sized particles causing pulmonary diseases including lung cancer. In addition, this air purifier has a negative ion generator which can produce ozone-free negative ions as the number of 1.5 million measured at 12 in. distance from the generator. The performance of the HEPA filter and the negative ion generator was proved by Korea official test laboratories, KCL's test.
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