... far from desease 4,Keep your heath 5,Econimic IntroductionSY2083 portable air purifier uses the electronic theory to produce the negative ions and ... upper respiratory tract inflammation, bronchial asthma, atrophic rhinitis, and stomatitis* Portable, easy to carry.Adaptation range*Trains, airplanes, ships, cars*Schools ... DC 3V 0.11 watt 110*80*55mm Room/car/home Air Purifier oxygen generator (Sy2083)