Source manufacturer of medical oxygen generator. Our products have excellent quality and competitive prices. Products have CE, FDA, SGS certification reports and so on. US$200.00/set---US$1500.00/set Household oxygen concentrator, 5L=$150.00/set, 10L=$160.00/set, Medical oxygen concentrator, 5L=$590.00/set, 10L=$760.00/set, Minimum order quantity>=500 sets, Please contact me for product details, the price discount will make you satisfied. Whatsapp: +86 13086670011