Portable Oxygen machine Available in three special types of Oxygen Machine Manufacturers supply storage systems where the oxygen is supplied to the patient usually through a tube or from first to last a mask.
Portable oxygen Cylinders. (High-pressure cylinders). These mostly hold pure oxygen in its natural form, stored under pressure in a cylinder. There are different weights available although 8.5 lbs appears to be the most used one, followed by lighter weighing cylinders (down to 4lbs).
Liquid oxygen tanks. (Liquid oxygen units). Oxygen is reserved as a liquid at a temperature of -170 degrees Celsius. In the lower part of the tank the liquid oxygen is stored, and a smaller area above is where the oxygen has evaporate into gas. A control valve is opened to supply oxygen to the patient. Portable liquid oxygen tanks vary in size, based on their weight - when full it will be between 6 and 11 lbs. The portable system is refillable, which in turn requires a storage space pool unit that remains in a permanent place in the home.
Oxygen concentrators : Portable concentrators are a recent alternative dating since 2002. An oxygen concentrator extracts and separates oxygen from the air (the air we take in air contains around 21% oxygen, 78% nitrogen, and 1% other gases). The result is a regular supply of oxygen for patient use. There are various portable alternatives that are either battery powered or can be plugged in straight - some can be plugged into the cigarette lighter port in cars.
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