It substantially reduces pollutants, dust, smoke, pollens and odors in the air. It kills bacteria and viruses, as fresh air is released towards your mouth, nose and eyes. This laboratory tested ionic wind technology projects trillions of air cleansing ions from its grill that electronically charge pollutants, resulting in cleaner, fresher air while traveling. No filters to change or maintain. Has a patented solid platinum emitter and gold electroplated collector grid that give it the most powerful output of any wearable air purifier. Please check with your airline regarding specific carry-on item regulations. Takes one CR123 lithium battery (included). (2 x 1 x "; 1 oz) Made in USA! *Please note that at the present time, Continental, Northwest, Alaskan Airlines, Jet Blue and Hawaiian Airlines do not permit personal air purifiers to be carried on-board.
Travel accessories 
