1,DC 3V , 0.11W 2,Portable . easy to carry 3,Efficient to keep ... desease 4,Keep your heath 5,Econimic IntroductionSY2083 portable air purifier uses the electronic theory to produce ... respiratory tract inflammation, bronchial asthma, atrophic rhinitis, and stomatitis* Portable, easy to carry.Adaptation range*Trains, airplanes, ships, cars ... *80*55mm Room/car/home Air Purifier oxygen generator (Sy2083)