Longfian Scitech Co., Ltd was founded in 2005 and located in Baoding,China. We have been professionally dedicated to R&D,Production and Marketing of series oxygen concentrators in the world. The control & ODSI system of oxygen concentrator are developed independently by R&D team, which ensure the products stable performance and good durability. All of our products are built to ISO 13485 medical device standard, and widely applied in medical, homecare, beverage, veterinary, industrial field. For domestic market, our 3L, 5L & 10L oxygen concentrator are approved by NMPA (National Medical Production Administration/ CFDA in China ) . For overseas market, some products are gotten approval of CE, FDA, FSC, EU FSC, INVIMA, Cofepris, SFDA etc. And our products have been exported to the United States, Germany, the United Kingdom, Russion, Turkey, Iran, India, Vietnam, Colombia, Mexico, Kenya and South Africa, covering 160 countries around the world, standing on the good quality and complete certificates.For more than 15 years, Longfian has developed and perfected oxygen equipment critical to supporting and improving all aspects of life. And in the past few years, Longfian has continuously won government tenders. Especially since 2020, the pandemic of Covid-19 swept the world, we work together with UN and WHO, taking on the mission of providing high flow oxygen concentrators to different countries of the world to fight against COVID-19. Longfian will always take care for the health of all mankind. Longfian adhere to "superior quality, professional technology, devotion to oxygen solution", and strive to care for human respiration.