There are three common ways of providing oxygen therapy. Oxygen can be delivered to your home in the form of a gas in various-sized cylinders or as a liquid in a reservoir (container) The third way to provide oxygen therapy is by using an oxygen concentrator. Each method is examined in more detail below.
Compressed Gas – Oxygen is stored under pressure in a cylinder equipped with a regulator that controls the flow rate.
Oxygen can be provided in a small cylinder that can be carried with you. The larger tanks are heavy and are only suitable for stationary use.
Because the flow of oxygen out of the cylinder is constant, an oxygen-conserving device may be attached to the system to avoid waste. This device releases the gas only when you inhale and cuts it off when you exhale.