A high-flow machine can produce as much as 10 liters per minute. How do I use a portable oxygen concentrator? Follow all of your doctor’s directions and the instructions that came with your device.

Do you need oxygen ... (4 liters per minute or more), you’ll need equipment that offers oxygen in a continuous flow, not pulses. An OCD may not give you enough. Stationary concentrators may ...

NEW DELHI: Oxygen concentrators with a flow capacity of less than five litres per minute are "not suitable" for COVID-19 patients on home care and should not be used, India's drug regulator has ...