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Oxygen is the most important life element in nature and the foundation of life process. Our body needs continuous supply of oxygen all the time. The oxygen deficiency caused by any cause will affect the life process. Oxygen absorption helps...
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Most critically ill patients need oxygen, and some pregnant women need to take oxygen frequently. What is the difference between oxygen and ordinary oxygen produced by household oxygen generators? Is it really that we think oxygen generators? The oxygen does...
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Chronic obstructive pulmonary disease (COPD), is a kind of lung disease that makespatients difficult to breathe. It is typically caused by long-term exposure to lung irritants, like cigarette smoke or air pollution.People with COPD usually have shortness of breath, wheezing...
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