Longfian Scitech Co., Ltd is located in Baoding city of China. And in 2016, Dongguan manufacture came into existance. Since 2005, We specialized in the development,production and export of medical serial oxygen concentrators. The company is possessed of own solid R&D team, who research and develop oxygen concentrator of control system and oxygen concentration monitoring part, enough to ensure the stability of the product performance and durability. Presently our company has succeeded in the production of serial oxygen concentrators from 1Lpm~60Lpm,which have been widely applied in medical, homecare,clinic,beauty salon,sports,industry and veterinary etc.