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Oxygen concentrators work by pulling oxygen out of the air and storing it, as the National Heart, Lung, and Blood Institute explains. Because of this, they do not need refills and are less expensive than other oxygen delivery systems. However, they operate on electricity and need a back-up system to


Some highly rated oxygen concentrators include AirSep Focus, LifeChoice ActivOx Pro Model and the Invacare XPO2, according to Portable Oxygen Solutions. Other models that receive good reviews include the Inogen One G3 Single Battery and AirSep Freestyle 5.


To repair an oxygen concentrator, ask the store if they provide repair services, or have the unit repaired by a company that specializes in medical equipment, suggests the Oxygen Concentrator Store. Some services require customers to ship equipment to them, while others offer free pickup and deliver


Low oxygen levels in the brain can affect concentration ability by causing difficulty in paying attention and by causing temporary memory loss. Additionally, low oxygen levels can cause a reduced ability to exercise good judgment, make sound decisions and perform body movements, according to Healthl


A portable oxygen concentrator works by compressing air from the environment and then passing it through a sieve bed to remove the nitrogen. The concentrator has two sieve beds containing Zeolite, a cubic crystal that collects the nitrogen when the air is under pressure and releases it with the redu


An efficient way to obtain replacement manuals for oxygen concentrators is to download them from the manufacturer’s website, notes Invacare.com. Another option is to download replacement manuals from licensed distributors and retailers, such as OxygenPlus Concentrators Inc.


Oxygen is required by all living things for respiration. It's also used in industries, water treatment, burning fuels and even protecting humans from harmful UV light thanks to the ozone layer.


Oxygen is a highly soluble element that is critical to biological functions, notably respiration. It comprises about 16 to 21 percent of Earth's atmosphere, allowing it to be inhaled and converted to carbon dioxide to power the cells of aerobic organisms. Most animals and plants on Earth require oxy


Oxygen is found throughout the universe. It is formed in the nuclear reactions that take place in stars. Much of the universe's oxygen is contained in water.


Oxygen is essential to humans and other living organisms as it is a chief component of air and water. Oxygen also has many practical industrial applications, such as in health care, medical equipment, fuel burning, water treatment and the melting of certain metals.