FEDYS Portable Oxygen Concentrator for Home,1-6 L/min adjustable oxygen device Double use oxygen generator oxygen machine : Amazon.co.uk: Health & Personal Care
Khalsa Aid on Twitter: "KHALSA AID OXYGEN CONCENTRATOR APPEAL Specification for Concentrators: - Air Flow should be between 4-10 litres per minute. - Capacity 6 litres or above. - UK/India electric supply